Note: This story was dynamically reformatted for online reading convenience. Sister, Girlfriend, Lover, Wife Part 1 (mg, inc) This is essentially a true story with some details changed for obvious reasons of privacy and some details added to fill the gaps in memory as the events occurred over 40 years ago! I should warn that this story starts quite slowly, but that's life for you! Don't worry, it does speed up as we go along but bear in mind that this is basically biographical so there will be bits of ordinary life in between the sex. ***** I was 13 when my sister suddenly acquired a well developed pair of breasts. That it caught me by surprise said something to the layers of clothes we tended to wear in winter and something to my lack of attention to anything outside the small stash of (really quite tame) 'adult' magazines that circulated between friends in those days long before the internet's inexhaustible supply of porn. It was a late spring day but one of the first where we actually felt the warmth of the sun; even by the standards of northern England, where we lived, it had been a miserable year so far. My mum had managed to get the three of us at the table together to eat but as I munched my way through the meal I didn't even glance my sister's way until I had cleared my plate. As my gaze passed her on its way to the TV screen it was suddenly transfixed. My 9 year old sister's favourite yellow tee shirt with the large, smiling sunflower on the front was suddenly a lot tighter than the simple passage of another year should have justified! There, all too clearly visible through the over-stretched material, were a pair of beautifully formed breasts. Not, as seemed to be the case with most of the girls in my year at school, small mounds or cones but real, honest to goodness, breasts--small but perfect. Some time passed and I was still staring at my sister's chest when I realised my mother was talking to me. Flushing guiltily I turned to my mum, "What?", I asked. "Don't you kids ever listen to a word I say? I said, you're 13 now so I'm not going on paying that old biddy next door to babysit you when I'm working. It's hardly worth going out some nights with what I give her and taxi fares. You're not stupid, just don't burn down the house and if anyone asks, you definitely always have a sitter with you." "Yes, Mum." "And Jenny, you stink. Johnny, make sure she washes herself properly and puts on some clean clothes. Is it too much to ask that you two make some effort?" "Sorry, Mum." "Sorry..." A car sounded its horn outside the house. Mum glanced at her watch. "I have to get going now. I have an all night session so I won't be back until 10 or 11 tomorrow. Don't forget to wash the dishes and I expect you to be up and dressed when I get back." With a pat on the head for me and a grimace at my smelly sister she grabbed her bag and shot out of the door. I should explain that although we both loved our mother, she was not the most attentive of parents, at least since our dad died. I was 8 and my sister 4 when a car crash took away our father. We hadn't been rich but we were better off than most in our neighbourhood. We had our own house, a car and a telephone when most rented and didn't have cars or phones. The insurance paid off the mortgage and kept us going for a couple of years but eventually Mum had to find work to cover the gap between the small widow's pension and what it cost to run the household. We always had food in the house and clothes to wear but, to be honest, Mum was never that interested any more and we children imperceptibly took on more and more responsibility for cooking, washing and household chores. Mum worked nights and was often tired or not feeling well even when she hadn't been working. She sometimes stayed in her room taking her special medicines for days at a time. When we were younger we had to sleep at our neighbour's house when Mum worked; later, the old lady would just come over and doze in an armchair in our lounge all night until Mum got back. We never liked Miss Moss (neither of us ever knew her first name and I'm not sure even Mum did) and she made it quite clear that the feeling was mutual. As she often said, there was a reason why she never had children. It was a relief that Mum was finally trusting us to stay by ourselves--or maybe she was just fed up paying Miss Moss. Either way, the news was welcome enough to take my mind off my sister's chest for a while. "Let's get these pots washed, Jen, and then we can relax." As I passed the gathered the plates, Jenny came round the table to take them. "Flipping heck, Jen! Mum was right, you stink. What have you been doing?" "Just out playing." "When did you last change your clothes? They look like they can walk to the washing machine by themselves." "Get lost! This is my favourite top and anyway, the more clothes I wear the more we need to wash. I hate ironing." "I don't like laundry duty any more than you but there is a limit. If you go around smelling like that it's not surprising you have no friends." As soon as I said it I wished I could bite my tongue off, "Sorry, Jen. You know I..." but my sister had already dashed from the room, tears gleaming in her eyes. I cursed myself. Neither Jenny nor I was popular at school. Our erratic home life meant it was impossible to invite schoolmates around and Mum's lack of attention sometimes lead to difficult situations, like the time my sister had to go to school in fluffy slippers because Mum had decided to throw away all her shoes in the middle of the night or the day I had to go to school wearing a pair of Jenny's panties under my uniform because... well you can probably guess why. It didn't help that we had PE that day. My real name is Jonathan but the only person who ever called me that was my Gran. My Mum called me Johnny, even when I told her I hated it. I wanted people to call me Jon. At the time this story starts I was just past my 13th birthday. My sister was christened Jennifer but, as with me, only Gran ever used her full name. Mum called her Jenny but I always knew her as Jen. Which all goes to show that parents need to think through the names they choose for their kids as we ended up as Jon 'n' Jen to most people who knew us. Jen and I were as close as most siblings and circumstances had probably brought us closer than many. In the absence of other friends we played together and, minor squabbles aside, rubbed along pretty well but were far from inseparable. Both of us were more than happy to spend time alone and we kept our rooms strictly to ourselves. Although four years younger than me, Jen was generally more confident. I think the fact that she had little memory of Dad made it easier for her to adapt to the loss and our situation just made her more independent. I was just the opposite. Dad had been my closest friend and his loss shattered my life and confidence in myself. I had grown to be a socially awkward teenager (even by the awkward standards expected of teenagers) with no close friends and few who would count even as casual acquaintances. Outside of the porn circle I hardly spoke to anyone in the neighbourhood and only gained admittance to that group through the happy circumstance of happening on an old stash of magazines when searching the attic for Christmas decorations. I finished clearing the table and washing the dishes by myself then went to find Jen. I knocked on her bedroom door. "Jen, are you in there?" "Where else would I be?" "Can you come out?" "Why?" "So I can grovel properly and you can kick me in the nuts." With a snigger the door opened. "I don't see you grovelling yet." I dropped to my knees and pantomimed an abject apology while Jen drew back her foot and aped a hefty kick to the bollocks. "Sorry." "It's OK. I don't know why I still worry about those kids at school anyway. They are just so immature." I snorted. Jen could sound like a little old lady sometimes. "Well this young lady still stinks so get into the shower and drop those clothes in the washing machine. I'll throw mine in and it can do its bit overnight." Jen grinned, "You might be right, for once, I'll just grab some clean clothes." "Can you manage or do you need me to come and scrub you?" This was just a usual bit of throw away banter so I was surprised when Jenny hesitated and blushed bright red as she turned back into her room. "No, I'll be fine." I shrugged and headed back to the TV while wondering what had bitten her. I was halfway through watching Frank Cannon throw his not inconsiderable weight around another crime show when Jenny reappeared looking and smelling a lot fresher. She threw herself on the floor propped against the sofa. "What's on, not old fatso again?" "Shush! I'm watching this. Anyway, there's nothing better." Sadly, in those days of only 3 TV channels, that was probably true but it didn't satisfy Jenny. "Fridays are rubbish," she complained, "There's nothing on TV for me at all!" "Maybe that's because little girls should be tucked up in bed by this time," I said in my primmest voice. Jen stuck her tongue out and blew a raspberry. We both laughed and I settled back to watch the end of the programme. As I turned back to the screen, Jenny sighed, stretched and arched her back like a cat as she made herself comfortable. Unfortunately, this brought back to prominence the physical change I had noticed earlier but successfully put out of my mind. Jen was wearing her usual night-time attire of tee shirt, panties, socks and dressing gown. The first of which was, as always, at least a year too small and last of which was, as usual, unfastened. Although I had seen her dressed in the same way for years, I was uncomfortably aware that for the first time I was not just seeing her as that sexless entity called a sister but also as an example of the far more difficult species called girls. As had happened earlier at the dinner table, I found myself staring at my young sister's chest for far longer than I should have. This time, however, my attention did not go unnoticed. "What are you staring at?" Damn! What do you say when your little sister finds you staring at her tits? Not thinking about them for the last couple of hours hadn't helped me at all! "Ah..." What could I say? Should I bluff it out--I wasn't staring at anything--or... maybe just do what we two usually did and just tell the truth. "I just noticed how much you've... changed." I swallowed nervously, "That is, I couldn't help noticing that you've suddenly... erm, I mean." This wasn't going well. "You've got very nice breasts and I hadn't seen--noticed--them before." "Sorry, Jen. I'm acting like a total wanker. I won't stare any more. Sorry." Luckily, Jen seemed to be coping with things better than I was. Although her blush was still visible in the blue glow of the TV she replied surprisingly, "Do you really think they're nice?" I don't know how I looked but I was sure my face was tomato-red and I could feel the sweat breaking out on my forehead. This wasn't a conversation I had ever imagined having with my kid sister. To be honest, it wasn't a conversation I had imagined having with anyone! I cleared my throat nervously again. "I'm no expert but from where I'm sitting they look pretty good; certainly better than any of the girls in my class at school and they are four years older. Sorry, I shouldn't have been looking but you just caught me by surprise." "Jon, you must be the last person in town to notice these things," gesturing towards her chest, "other than Mum, who wouldn't notice if we both grew second heads! The girls at school have been teasing me since last summer and the boys have been calling me horrid names for months." "Oh." It seems I wouldn't be winning any prizes for observation, "What names?" "Every time I walk past Pete and his mates they all shout out, 'Look out, here comes Fatty Big Tits' and now they have all started calling me FBT'." Jenny had a catch in her voice and I could see the suspicion of a tear forming in her eyes. "I knew they didn't like me before but they don't have to shout it all round the school." "Well, like you said, they are just a load of immature children. Half of them probably still go home to suck on Mummy's tits and wouldn't know what to do with a girl if they were lucky enough to get near one as beautiful as you. Anyway," I decided to risk lightening the mood, "I can understand 'Big Tits' but 'Fatty'? It looks to me like that puppy fat went straight to your breasts." Jen thumped me on the leg. "Watch it or the next kick in the nuts will be for real!" She rested her head companionably against my thigh, "Thanks, Jo-Jo." I ruffled her hair and we sat for a while in silence watching the end of Cannon's adventure. Suddenly, I blurted out. "Jen, I know I probably sound like a total pervert but... could I look at your breasts? I've never seen a real one and with my luck will probably never get another chance. No, forget it. That just sounds sick. I've upset you already tonight and now I'm being an even bigger wanker. Just forget what I just said. Please." I forced myself to look down at my sister's upturned face. Her eyes were wide with surprise but I saw no sign of disgust. "Jo-Jo," again, she used our childhood pet name, "You knock yourself too much. I'm sure there are plenty of girls who would love to be your girlfriend if you just stopped worrying about it." She took a deep breath, "But until then, I don't think you're sick and if you still want it I'd be happy to show my titties. On second thoughts," my heart missed a beat, "I think I preferred it when you called them breasts." My chest was tight and the sweat was forming again on my brow. I really wanted to see some real breasts but... was I comfortable pressurising my kid sister? "Well? Do you still want to look?" With a half gasp I managed to stutter, "Yes!" It seemed I had resolved that moral dilemma after all. "How do you want to do this, Jo-Jo?" "Do you mind if I turn on the lamp?" She shrugged, "Whatever. Where do you want me?" I flicked on the lamp, "Just sit next to me on the sofa." Jenny sat down and without any more ado pulled her tee shirt up to her shoulders. I was riveted and this time was able to stare unabashed although painfully aware that my cock was straining at a most uncomfortable angle caught in the leg of my underpants. Her breasts were everything their outline had promised through the material and more. Small but appearing larger on her frame, pert and firm looking with slightly uptilted nipples. To my eyes they seemed much more attractive than some of the big blue-veined udders on the models in the magazines. Jenny broke in on my thoughts, "What do you think then? Are they alright?" "They're lovely," I said, "Much nicer than the ones I saw..." Oops! "Where did you see other girls?" demanded Jenny. "They weren't girls, they were women and just in some magazines, honest, and yours are much better anyway." Mollified, although probably storing the magazine slip for later use, Jenny asked, "So how are mine different?" "Well, obviously, you are smaller than them. Your nipples are also a bit smaller and pinker and so are your," I hesitated, searching my memory for the right word, "areolas...? I'm not sure I said that right as I've only ever read it in a book." Jenny looked puzzled, "What are those?" I pointed at her nipples then sketched a circle in the air, "Those and the pink skin around them. In the photographs I saw they were a lot darker in the women." "Your skin also looks a lot smoother and your breasts don't look as soft. I guess that's all because you are young." The discussion had at least allowed my cock to subside enough that it wasn't actually painful so I returned to burning every detail into my memory as I was sure I'd never have the chance again. "Do you want to touch them?" Jenny's face was a little flushed but I wasn't sure whether this was with embarrassment at being half naked before her teenage brother or with the boldness of her suggestion. "I don't mind if you do." I slowly reached out a shaking hand as if afraid to startle a wild creature, or maybe afraid to break the spell and lose this unexpected opportunity. My fingertips brushed the side of her breast and a small shiver ran down her as her skin momentarily raised into gooseflesh. I cupped her breast in my hand and felt the surprising weight against my palm. For some reason I'd never really thought of breasts having any weight. As I ran my fingers across the smooth skin I mentally ticked off the 'firm' box. Jenny was looking down, watching my hands roam as my left hand moved to explore her right breast. She smiled briefly as she caught my eye then returned to watching my hands. As I changed position my finger brushed a nipple that was suddenly hard and erect. She flinched back and I pulled my hand away quickly. "Sorry, did that hurt?" "No. I was just surprised. It was... nice, I think. You can touch me there again, if you want" With this permission my exploration widened to encompass her lovely little nipples. Little larger than a pencil eraser, they were still rock hard and looking darker than previously. I squeezed a nipple gently between my fingers and Jenny shifted a little in her seat. Glancing up to her face I saw that she had closed her eyes; maybe she didn't want to watch any more. Worried my time might be coming to a close I redoubled my explorations. Jenny started to move around more uncomfortably then suddenly, pushing my hands away, leapt to her feet and, pulling down her shirt, ran from the room. I heard the sound of the bathroom door slamming closed. Shit! Shit! Shit! I stared at my hands. What had I done? My stomach churned. I'd been molesting a 9 year old girl--my own sister--until she ran away from me. God, I was going to end of locked away as some sort of pervert--and that was if my Mum didn't catch me first. She had made all too clear more than once what would happen if anyone ever interfered with her baby--and it involved castration with blunt scissors as a first step. And what about Jen? Even though we weren't a demonstrative family, I really loved her and I felt sick now to think I had hurt her. Shit! Shit! Shit! How could I be so stupid! I'd thought I'd always protect my baby sister but at the first temptation let my cock take over from my brain. My eyes were swimming with tears when the living room door opened again. "Jen, I'm so sorry. Can you ever forgive me? I don't know what happened. I swear nothing like this will ever happen again if you just give me another chance." The tears were now running freely down my cheeks but Jenny stopped in mid-step. "What are you talking about? Are you crazy or what?" "I'm truly sorry. You must have been hurt or frightened to run from the room like that and that's my fault. I know you'll never trust me again but can you forgive me?" Jen snorted in laughter, "Wow! Talk about over-reacting. I just needed to pee really bad. Why do you boys always have to make such a drama about everything?" "You're really OK?" "Well I'm here and I'm not the one crying like a baby so what do you think?" "Jen, I promise you, nothing like this will ever happen again. You'll never catch me looking at your... chest... again and everything will be back to normal." "So you didn't like my breasts? You are just like the boys at school. You are probably already thinking 'Fatty Big Tits' when you look at me. I knew it. It's just disgusting having these things sticking out!" "Jen, no! If you were four years older--and not my sister--you'd be so out of my league that I couldn't even dream of you being my girlfriend. You are beautiful and smart and yes, you have lovely breasts that girls five years older would be lucky to have. But breasts don't matter, it is the whole person and you are a wonderful girl." "But you were the one staring at my breasts!" "True, but I'm also a shallow wanker and could never hope to have a girlfriend like you." "Well, I think you're super and would be your girlfriend any day of the week." "Thanks, Jen. I love you too, but I don't think that's going to happen any time soon!" Jenny stuck out her bottom lip, "Why, what's so wrong with me?" "Errr, 4 years older and sister, if you remember?" "Why does age matter? What could I do at 13 that I can't do now?" "All sorts of boyfriend/girlfriend things..." "Like what?" "Well you know," I stalled a bit, still embarrassed to talk about these things with my kid sister, "sex things." Jenny snorted, "What 'sex things'? You've never even held a girl's hand." "That's the whole point! Boyfriends and girlfriends are supposed to, well, you know, do things." "Tell me!" "The fact that you need to ask is exactly why you are too young." So there--it made a change to win an argument with Jen. "Phooee! When did you become an expert? We would be learning together." "What's this 'would be'? There's still the little matter of your being my sister." "Who cares about that?" "Mum, for a start. She'd cut my balls off if she even heard this conversation." "Mum wouldn't notice unless you stuck a notice on her door telling her about it--and even then the chances are she would throw it in the bin without reading it!" I was starting to feel this argument slipping away from me. "It doesn't matter what you say, it's just wrong for a brother and sister to be like that." "Didn't you like it when you played with my tits?" Drat! "You know I did but I also felt sick that I had hurt you." "But you didn't hurt me--it was all in your imagination. Really, I enjoyed it too and didn't want you to stop. Neither of us has any friends. Let me be your girlfriend. Please, Jo-Jo. I'll do my best to make you happy until you have a real girlfriend." "That's the problem, Jen. This isn't something we can play at; we can't be 'pretend' boy and girlfriend otherwise it is just like you playing house and giving tea parties for your teddy. We'd have to do it for real or not at all!" "OK. I accept. I'd rather be your real girlfriend anyway." Hang on, that's not what I meant to happen. Why do I get the feeling I'm being outsmarted by my kid sister? "Look, this isn't something to rush into. Let's think about it tonight and talk again in the morning." I glanced at the clock, "It's past your bed time anyway, little sister." Jen seemed content with her progress and, with a parting raspberry headed for her room. I slumped back in something of a daze. How had I got myself into this mess? What had started off as an impromptu peek at his sister's breasts has somehow spiralled into her thinking she could be his girlfriend. It was crazy, but... even as I was thinking this my cock was having its own thoughts and getting hard again at the memory of fondling Jenny's breasts. I went to my room and had a wank while trying not to think about Jenny. I wasn't very successful as all I could visualise as I came was shooting my cum across Jen's firm little tits. I didn't sleep too well as my mind was in a turmoil with the competing influences of caution, taboo and simple hormones. As I awoke the next morning, the previous evening's events took on an air of unreality. Had that conversation really taken place? Even if it had, surely Jen would not mention it again, it was just too ridiculous. Shaking myself, I opened my eyes to find myself looking into the unmistakably dark brown eyes of my sister. Unblinking, she smiled, "OK, I've thought about it and I still want to be your girlfriend, for real and no games." Whether it was just my normal morning hard-on or my hormones taking matters into their own hands, I was suddenly conscious that my cock seemed extra hard and throbbing, pushing against the front of my pyjamas and demanding I paid attention. I was suddenly short of breath. "You're sure?" "Yes, I've thought about it all night, like you said, and I've decided." "OK. I must be crazy but let's do it." As Jen started to bounce with excitement, I continued, "'We have to make a promise though. You have to know that if anyone finds out there will be big trouble--especially for me. So we both need to promise to always tell each other the truth, not to make the other do anything they don't want, to accept if the other wants to end it and, most important, never, never tell anyone about what we are doing. Not now, not next week or next year. Not ten years after it is all finished. Never. And that means no hints, no 'secret boyfriend' stories, no rising to teasing or bragging from your classmates in a year or two when they whisper secrets about how they kissed their boyfriend or let him touch their tits. Not a word or we're both sunk." "I promise." said Jen solemnly. Looking at her serious little face, I almost laughed. "Let's seal it with a kiss then." Jen leaned forward a couple of inches and pecked me on the cheek. "No, I think it's time for a proper kiss now." I took her chin in my hand and looked into her eyes for a moment. "I hope we aren't making a big mistake." Then I tilted her chin up slightly, leaned in and kissed her on the lips. Gently at first then more firmly. Jen was initially hesitant but her lips softened and she began to respond in kind as my lips moved on hers. I could feel the hot breath gusting from her nostrils as the kiss continued. Suddenly and thrillingly I felt her mouth open and her little tongue dart momentarily across my lips. I chased her tongue back with my own, teasing and squirming together. I had the uncomfortable feeling that I was going to shoot in my pyjamas if this continued much longer. We pulled apart a few inches--still within kissing distance but able to breathe--and I stared at Jenny in surprise. "Where did you learn to kiss?" "We girls do talk sometimes. Claire said her older sister had told her all about 'french' kissing and how boys liked it but it was a bit yucky. Well, I think her sister was either lying or didn't do it right because I liked it. What do you think?" "Well I think its great and Claire or her sister are just talking shit. Probably neither of them ever kissed a boy in the first place! Or maybe we should try it again, just to be sure?" Giggling, Jen reached up and pulled me back into a deep and passionate kiss. So engrossed were we in this new pleasure that we did not hear the car door close, the front door open or the footsteps on the stairs. We did hear when the bedroom door banged open. "Are you two still in bed? I thought I told you to be up and dressed when I got home?" Before we could reply or even disentangle ourselves, the door banged closed and we heard Mum descending the stairs again to the kitchen. After a moment for our hearts to start beating again we both looked at each other and burst into a fit of giggles. "What did I tell you, she wouldn't notice if we had two heads!" laughed Jen. We both jumped out of bed; I kissed Jen quickly on the lips and patted her slim behind motioning her towards the door. She started to turn then stopped suddenly, a puzzled look on her face. "What's that? Have you wet yourself?" pointing at the tent in my pyjama bottoms and the damp patch from my leaking precum. "Flipping heck, you really don't know anything about sex, do you?" "I told you that last night and you said you would teach me." "I don't remember saying that at all but I do think we need to have a chat later or this is all going to get way too complicated. Now go get dressed before Mum does start to notice that second head!" I made it down to the breakfast table just ahead of Jenny. Mum was already slumped at the table, coffee in one hand and cigarette in the other. It had obviously been a difficult shift. Jen came trotting in a moment later dressed in a bright yellow summer dress (yellow was her favourite colour) which, being a year old, was both a little tight and rather short. This gave a delicious thrill as I drank in again the sight of her breasts pushing against the thin material as well as a glimpse of her panties as she sat. Mum stirred. "Well, I'm glad to see you smartened yourself up. You look lovely this morning, Jenny. She looked her up and down a little blearily, "I think you need some new clothes though. I'll leave some money and Johnny can take you to town. Have a burger or something while you're out 'cause I'm working again tonight so I need some sleep." Mum heaved herself to her feet and searched briefly in her handbag before pulling out a bundle of notes. Peeling a few off she staggered away to bed, leaving us to our breakfast. "Wow, I never noticed how pretty you look in that dress, Jen" "Hmmph. You mean how nicely you can see my tits. You've not stopped staring at them since I came in!! "That's not true. I also have a nice view of your panties." I laughed, "Mum was on good form this morning, how much did she leave us?" Jenny picked up the notes, "Wowee! That's too much, surely?" I had a squint at the money, "Well, she seemed to have plenty today and she did say to take you shopping and to stay away all day so I suppose it's alright." "Is this our first date then?" "I suppose so but try not to shout about it too much, we are supposed to be keeping this a secret." "Maybe we should take the train to Liverpool and go shopping there? Nobody would know us and I could be more like your girlfriend." "You'll still be a rather young girlfriend but it might be fun and we can always tell Mum we wanted to see some bigger shops, if she asks." "Which she won't." We quickly finished up breakfast, washed the dished, tidied the kitchen and grabbed the money from the table. Quietly closing the door we left home and walked to the train station in the bright sunlight. I glanced down as Jenny slipped her hand in mine then I quickly pulled away as if scalded. "What are you doing? We can't walk hand in hand, someone will see!" "We always hold hands when we go to town! Have you forgotten or are you just jumping at ghosts now." "You're right. I'm so jumpy, even though we haven't really done anything wrong, that I can't remember what we normally do. If we always held hands then that's what we should do now." "Don't you want to hold my hand?" This took only a heartbeat to decide, "Actually, yes, I really do want to." And somehow, although we had walked the same streets hundreds of times holding hands, never before had my hand tingled with excitement. I have to admit that I my cock was also at full attention all the time we were holding hands although, fortunately, not noticeably so in my jeans. As we came into the town centre I was greeted by a neighbour. "Hello there, Johnny. It's nice to see you out with your sister. So many boys don't want to be seen with their sisters nowadays. Make sure you look after her around town and hold on to her hand; you know how easily young girls can wander off." "Thank you, Mr Chapman. Don't worry, I'll take good care of her," I gave Jen's hand a squeeze, "won't I, Jen?" We made our way into the station and bought our tickets to Liverpool then, still hand in hand, boarded the train for the short journey. At that early hour on a Saturday, the train was virtually deserted and I risked putting my arm around Jenny as we snuggled into a far corner of the carriage. Glancing quickly around, I leaned in to kiss her as the train rolled out of town. The kiss evidently continued longer than planned as we were interrupted by the guard clearing his throat loudly. "OK, you lovebirds, tickets please." He said with a smile. Flustered, I managed to drop the tickets and had to scrabble around under the seat to retrieve them. "Is your boyfriend always so butter-fingered, love?" Jen smiled, pleased with the guard's acceptance of her position as girlfriend. "Not always," she smirked as I emerged, red-faced, with the tickets. "We don't seem to have quite got the hang of keeping this a secret yet have we?" she laughed as the guard carried on down the carriage. "I think we need to control ourselves a bit more in public." I wheezed, "This is going to kill me otherwise!" Jenny just laughed and slipped her arm through mine as we gazed through the window at the passing countryside. The day in Liverpool was a great success. Confident that there was little chance of meeting anyone we knew and bolstered by the train guard's easy acceptance of us as boy and girlfriend we wandered arm in arm through the city centre window shopping and stopping, more than once, for a kiss and cuddle in a quieter corner. My only problem was my balls were aching and my pants getting wet from the constant excitement of the situation. Just holding Jenny's hand was enough to give me a raging erection! Clothes shopping was surprising fun, especially when shopping for a sexy young girlfriend. Jen flirted outrageously trying a series of increasingly revealing outfits and deliberately bending and twisting to show her panties and pert cleavage. In one shop she suddenly reversed everything and, putting on her best 'little girl lost' voice asked the assistant: "Please miss, would it be alright if my big brother helped me try these clothes because I can't work the zips by myself?" With a smile at me, the matronly assistant nodded her assent, "Of course. It must be nice to have such a lovely brother. There aren't many who would want to spend their weekend helping a little sister. Use the end fitting room, there is more room there." Jenny gathered her purchases together and hurried to the fitting room before collapsing into a fit of giggles. "You should have seen your face!" "Jen, you are going to give me a heart attack. At least give me a warning." "Where would be the fun then? Anyway, I thought you liked seeing me without any clothes?" "Shhh! Keep your voice down Jen. These rooms aren't exactly soundproof." "Oh shut up and make yourself useful, unzip this dress for me" She swivelled to present her back and the zip of her yellow sundress which she had successfully removed a dozen times already. I slid the zip down and marvelled at the smooth skin of her back and the lovely curve of her neck. I couldn't resist kissing her back and shoulders before nibbling at her ear. "God, you're so sexy." Turning again and slipping off the dress, Jenny put her arms around my neck. Pressing her now naked breasts to my tee shirt she looked up at me. "You can explain what that means later. Now kiss me then pass those dresses over." We eventually amassed a collection of clothing that was decent enough to wear in public and, burdened by our bags, headed for lunch. We ate at the most quintessentially British of eateries, a Wimpy. Only in Britain in the 1970s would you find people happily sitting down to eat a burger with a knife and fork! Still, it was a treat for us as money rarely stretched to eating out. Finding we still had plenty of money left and not wanting to end our 'date' too soon we made our way to a cinema to catch the matinee. I honestly can't remember what the film it was as we spent the whole time snogging on the back row. We were far from the only young couple similarly occupied--there were few options for teenagers to get together in the dark in those days--but I'm fairly sure we were the only brother and sister. For over an hour we were locked lip to lip with tongues entwined as I stroked and squeezed her breasts through the thin material of her dress. We came up for air only when the national anthem played and the house lights came on. All in all, a good time was had by all and we returned home in high spirits, Jenny virtually skipping along as we swung the bags of shopping between us. As we neared our front door, Jenny turned to we and, throwing her arms around my neck, kissed me soundly on the cheek. "If I can't give you a girlfriend kiss here, I can still give my big brother a kiss for being so wonderful." I smiled down at her then my stomach lurched as I saw our mother watching from the window. With some trepidation, I opened the door and we came in. Luckily, Mum was smiling. "I can see you had a good time today. I'm so glad and I'm especially happy to see you two getting on so well because I needed to make a decision and you've just made it a lot easier." Jen and I looked at each other puzzled then turned back to Mum. "I've been offered a job that will bring in a very nice amount of money. A week ago I would have turned it down without a thought. The thing is that I would be away for a week and up until the last few days I didn't think I could leave you two alone. Last night showed that you could be trusted and today seems to show that you can get on even when it on a job as boring for a boy as clothes shopping. I'm proud of both of you. The question is, do you think you could manage for a week?" "No problem, Mum!" Jen piped up, "We do a lot of the cooking and cleaning anyway and it's half term next week so we won't be at school." A momentary shadow flitted across Mum's face, "Yes, I have left a lot of the housework to you kids recently. I must try to do more in future. What about you, Johnny? Can you stand being alone with Jenny for a week?" "Sure, we get on OK and, like she said, we can manage here." Mum paused with pursed lips, considering, "OK. I'll just phone my boss to let him know then I have to leave straight away to catch the train. This could be a big chance for me. Look, I know we haven't had a holiday for a long time so I'm leaving you some extra money. I want you to have a good time while I'm away. Consider it a holiday away from your old Mum. Only, no drinking and no parties. I don't want to come home and find the place wrecked. And if anyone asks, I've just popped out and will be back soon." She pulled out a handful of notes from her handbag and passed them over to me. "Johnny, you are the man of the house and are in charge while I'm away. If there is a dire emergency, you can speak to Miss Moss but I'd rather the old biddy didn't get her nose in our affairs. I'm not sure when I'll be able to ring because I'll be travelling around a lot so don't worry if you don't hear from me every day. Jenny, you are to do what Johnny tells you. If he tells you it is time for bed I don't want you arguing about it!" Jen and I exchanged glances and simultaneously broke down into giggles. Mum looked on bemused. "Either you kids are weird or I'm missing a joke." With that. Mum darted off to call her boss and order a taxi. Ten frantic minutes of packing ended with the sound of a car horn outside as the taxi announced its arrival. Mum rushed down the stairs, case in hand. "OK, kids. Don't forget to have a good time and if Jenny gives you any trouble feel free to give her a good spanking, Johnny!" The last comment was said with a laugh but Jen seemed to give me a speculative look that sent unexpected quivers through my stomach. With a wave and the slam of a car door Mum was gone. Jenny and I looked at each other. "What should we do now?" she asked. I opened my mouth to speak but closed it again nonplussed. Given the freedom to do whatever we wanted I was at a loss. "I'm hungry. When are we going to eat?" asked Jenny. We decided, as it was supposed to be a holiday, to have fish and chips. As we were suddenly so rich we splashed out on a whole portion of mushy peas each instead of sharing and bought a bottle of Coke rather than the cheaper dandelion and burdock Mum normally gave us--on the odd special occasion when we had pop. With lashings of vinegar and a healthy (or unhealthy, by today's standards) sprinkling of salt the crispy fish and thick golden chips made for a great meal! Replete, we dropped together on to the sofa then an awkward silence arose. I really didn't know what we should do next. I knew that I wanted to kiss Jen and do other things but, naive 13 year old that I was, didn't actually know what those 'other things' might be. I also felt embarrassed just to say, "Hey, I'd like to see your breasts again now" or to suddenly pounce on her unannounced. Blushing furiously and staring at my sweating palms rather than look at Jen I stammered out, "Shall we watch TV?" "What about sex?" asked Jenny. "Eh?" Even for the notoriously blunt Jen that seemed a bit sudden. "You were supposed to be telling me about sex and why your pyjamas were wet--and what that was sticking out. Oh, and why I'm 'so sexy'." "Oh, right!" I sighed, expelling a lungful of air that seemed to have been trapped by her earlier comment, "I did say that, didn't I? So what do you know?" A look of concentration passed over Jenny's face. "I know that baby's grow inside women's tummies but that's about it. I never really thought much about it before." "OK. We did human reproduction last term in biology so I can definitely tell you the science bits but as for the rest," I blushed again, "like you said yesterday, I'm no expert but I'll tell you what I can." Jen hugged me. "Thanks, Jo-Jo. You don't have to pretend and we did promise to tell each other the truth, remember?" "Yeh. It's just still a bit embarrassing because boys are always supposed to know everything--or at least that's what they tell each other!" "I told you boys were stupid. Girls don't talk like that." "Hang on a sec," I quickly grabbed a notepad and pencil from the bureau in the corner. "This will be easier with pictures but don't expect anything fancy--I'm rubbish at art." "OK, teacher. I'm ready." Jenny leaned against my shoulder to see the notepad. I thought for a moment then quickly sketched a couple of lines to indicate the lower body and top of the legs. "Like you said, the baby grows inside the woman. The place it grows is called the uterus or womb." I added a triangle in the middle of the drawing. "The baby takes 9 months to grow and when it is born it comes out of a passage at the bottom of the uterus called the vagina." I put another couple of lines, "which ends at an opening between the woman's legs" "You mean down here?" Jenny pointed to her crotch. I nodded. "But how can a baby fit through there?" "They didn't say. I guess women must be stretchy." I shrugged, this wasn't something that had come up in class. "Hmm. But how does the baby get there in the first place? Does it just happen?" "Hold on, I'm just getting there. Above the uterus there are two oval things called ovaries that connect with little tubes." Another squiggle with the pencil. "Once a girl is old enough to have babies these start producing an egg once a month." "What? Girls don't lay eggs!" "These aren't chicken eggs they are so small that you would need a microscope to see them." "So when does a girl start making these eggs and how can you tell?" "I'm not 100% sure. I think they said about 12 or 13 but it varies--like how early your breasts grow." I glanced significantly at Jenny's chest. "You know when you have started because you also start to have periods." Jen's blank look showed this was news to her. "Each month the uterus gets ready to have a baby. The walls get thicker and... I don't know" "They didn't mention this in class..." Jen interrupted. "Right. The important thing is that if you don't start a baby then the uterus clears out all this extra... stuff ready for next month and it comes out of the vagina. Basically like you're bleeding. Girls use special pads like little nappies that stick inside their pants to catch the blood so it doesn't make a mess. You must have seen them in the chemists?" Jen shook her head. "I don't think so. How long does this take? How much blood is there? Does it hurt? It all sounds horrid." "Sorry, they didn't say and it's not the sort of things boys talk about. Didn't any of the girls say anything?" "Well I'm not exactly close with any of the girls at school." Jenny shrugged, "I guess if everyone has them then it can't be too bad or I would have heard about it. So how do you decide whether you are having a baby or not?" "That's where the man, and sex, come into it." I flipped the page and sketched another body outline. "The man also has two oval things, this time called testicles--but guys usually call then balls or nuts--and they sort of hang down between the legs. It's dead painful if they are hit so try not to kick me in the nuts too much!" Jenny laughed and kissed my cheek. "Just be nice and that shouldn't be a problem." "They connect with tubes to the penis." Another quick doodle. "When a boy is old enough they start to make sperm which are like tiny microscopic tadpoles. When a man and woman have sex he puts his penis in her vagina and the sperm come out. If one of the sperm catches the egg at the right moment then a baby starts growing." I put down the pencil with a flourish. "And that's how babies are made!" "So to make a baby you need the sperm and egg to get together?" I nodded. "But the eggs only come out once a month?" "Yes." "It doesn't seem very easy to make a baby then." "I don't know, maybe the sperm can swim around for a while. Nobody ever asked." I was rapidly understanding how much hadn't been covered in class. "Anyway, if you don't want to have a baby you can use a Durex to stop the sperm--that's like a rubber cover that goes over the penis--or the woman can get special pills from the doctor but I'm not sure how they work." "OK, I get the idea but none of that sounds very exciting." Jenny looked puzzled. "Why all the fuss about sex if it is just putting the penis in the vagina and the sperm swimming around looking for an egg that probably isn't there?" "Right. What the science teachers don't tell you is the fun parts. Basically, to make sure that people keep having sex and making babies nature has made it all feel dead good." I shifted a little uncomfortably. "You know when I was touching your breasts last night and you said it felt nice?" Jenny nodded, "Of course. And when are you going to get around to doing that again Mr Teacher, sir?" "Well that is part of sex too. Touching your breasts and between your legs--boys call it a girl's pussy but I'm not sure what you are supposed to call it--gets you excited and ready for sex. Inside the vagina gets wet and slippy so the penis (that we usually call cock or dick) can slide in more easily. The boy's cock gets stiff, they call it an erection in the text book but we normally say hard-on, and also starts making slippy stuff that comes out of the end. That's what you saw this morning; my hard cock sticking out because I was excited from kissing you and a wet patch from that slippy stuff." "Wow, so you were really excited?" "Jen, I was hard all day and if I hadn't been wearing dark jeans you would have seen a wet patch on my trousers. Just holding your hand on the street made me hard and when I unzipped your dress in the shop I nearly came in my pants." "Came?" "Oh drat! I knew I'd forget something. Sperm don't just swim out of the penis as soon as you put it in the vagina. The man has to get extra excited, by rubbing his cock in and out of the woman's vagina. This gets more and more exciting until the sperm suddenly shoots out. That is called the climax or 'cum' and is the most amazing feeling in the world." "How do you know if you've never had sex?" Awkwardly and blushing again (when would that stop, I wondered) I explained, "You can make it happen without doing the sex part. If boys just rub their cocks enough they can cum, it's called masturbation and adults say its bad but everyone knows that boys do it all the time--we call it wanking--and it feels so good that I can't imagine not doing it." "How long have you been doing it?" "Just a couple of months. I never even thought about my cock as anything other than the thing I pee out of until one morning I woke up with a sticky wet patch on my pyjamas. I thought I had a disease or something but when I was looking at my penis to check, it got all stiff and felt good so I kept touching and suddenly I felt like I was going to pee right there in the bedroom but I couldn't stop myself and then the greatest ever feeling came and this white stuff shot out. I only found out later that sometimes you can cum in your sleep and that's what had happened to me." "Can you do it for me now? Show me how your..." Jen hesitated, blushing at using a naughty word, "cock shoots sperm." "OK. Just hold on to some tissues for me. I don't want to make a mess on the sofa." I stood and slipped my tee shirt over my head and kicked off my shoes. With a shaking hand I undid my belt and unzipped my jeans. Jenny was staring intently at my groin as my jeans slid to the ground. My hard cock was pushing out the material of my pants and a large wet patch was clearly visible. "I can see!" Jenny crowed enthusiastically, "Your pants are all wet so you are excited. Let's see your cock now!" Taking a deep breath I pushed my pants down to my knees and my cock sprang up. "There!" Jen leaned closer. "Is that hair growing around your cock?" "Oh yeh. I forgot about that too. Boys and girls grow hair around their cock or pussy and also under their arms." I raised my arm to show the light scattering of hair growing there. Boys also grow hair on their faces, but I've never started yet." Distracted, my cock started to wilt a little. "Sorry, did I put you off?" "Don't worry. Just having you watch is enough to make me almost ready to cum straight away!" I sat back on the sofa and took my cock in hand as I had done so many times in the last few months. I was conscious of Jenny leaning in to watch and closed my eyes to concentrate on wanking. My cock was already slimy with hours of precum coating almost its entire length and it took only a moment to get into my stride. Cock fully hard my left hand joined the action cradling and gently squeezing my balls. I was so excited I knew it would only take seconds to cum. I could feel the familiar tingling starting as my body tensed. Opening my eyes I saw my sister watching wide eyed as my hand moved faster. "Jen," I gasped, "not so close!" Too late. As I spasmed in the most intense orgasm of my short life my cum shot out, the first spurt going right over her head to hit me on the shoulder, the next taking Jenny square in the face. The remaining squirt covering my abdomen and the top of Jen's dress. "Sorry, Jen. I tried to warn you but I couldn't stop." Jenny seemed not to hear. She was transfixed by the sight of my cum as she moved her figures across my belly. "Wow. I never knew anything like that could happen." As a trickle of cum ran down her cheek she automatically flicked it away with her tongue. "Oh! Is it alright to eat this stuff?" "Sure. I've tasted it and not died." Although, to be fair, tasting it always seemed like a better idea before I came I had tried it once or twice and didn't find it totally disgusting. Jenny lifted a cum coated finger to her lips and daintily touched it to her tongue. She sniffed at it then, shrugging, put it in her mouth and sucked it clean. "It's OK. I'm getting a funny feeling down here, in my" she paused, "pussy. Is that because I've eaten your sperm?" "No, I think it's just that you are getting excited too. Oh heck! I forgot to tell you about that part too. Girls can cum too--although they don't shoot anything. Shit! I don't think I'm a very good teacher!" "I think you are a great teacher," Jenny said. She leaned across me and our lips locked in a lingering kiss that inevitably lead to a fair bit of cum going into my mouth. Strangely, it tasted a whole lot better than when I had tried it before. I was surprised to find myself kissing and licking my sister's face clean. She shivered, "That feels so good. Can we do it again?" "That," I smiled, "will definitely not be a problem, my love." "My love?" I paused. "Yes, Jen; my love, my sweetheart, my darling, my beautiful sexy girlfriend." She hugged me tightly, "I love you too, Jo-Jo." She looked down and started to giggle. "I think this dress will need washing!" She was right, our hugs and kisses had served to coat the front of her dress with my cum. She reached over to lick a drop of cum from my shoulder. "It looks like we didn't need those tissues after all!" she laughed. I kissed her again. "Let me have a quick wash then we'll see if we can figure out how to make you feel good too." ************ This story is inspired by true events but offered as adult fantasy entertainment. The author neither condones nor encourages exploitative or illegal activity.