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Sex With My Sister At Last!
by Striker (writer_robert@yahoo.co.uk)

***

A true story of how I finally got to fuck my sister 
while she was staying with my wife and I, as well as 
discovering my wife's hidden bisexual side! (FFM, 1st-
inc, 1st-lesbian-expr, bi, oral, swingers)

***

This is a true story.

My sister had been visiting and staying with my wife and 
I for 2 weeks now, and I was starting to get a little 
restless. The problem was that with somebody else in the 
house, there did not seem to be much time for sex with 
Zoe, my wife. To compound the issue, I had always 
secretly fancied my sister, and seeing her walk around 
in her night gown in the evenings, with her firm nipples 
pressing against the thin fabric, was just making me 
more turned on. 

She had grown into a really sexy woman, with E-cup tits 
(I had looked at the label on her bra in the laundry 
hamper a few nights earlier). She also worked out a lot, 
and had a lovely flat stomach and a firm round ass.

Every evening she would walk around the house in a pair 
of thin, almost sheer pyjamas that clung close to her 
body, so close that I could easily make out the smooth 
outline of her vagina, clearly clean shaven as the 
smooth profile of the fabric revealed. I am sure that 
she had noticed me staring at this more than once while 
she moved through the room, but she never let on.

Anyway, tonight was special. Tracy, my sister, had gone 
out to meet an old friend from school, and Zoe and I 
were alone in the house for the first time in 2 weeks. 
We had been sat in the lounge watching a movie, but I 
could not really contain myself, and after only a few 
minutes, I had slipped my hand down Zoe top, and started 
to gently roll and tug on one of her nipples. At first 
Zoe just carried on watching the movie, but after a few 
minutes she let out a little moan

"Mmmm, that feels good."

"Well why don't you get your top off so that I can get 
at them better," I said.

"But what about Tracy?"

"What about her, she is not here, and won't be back for 
hours yet."

"I guess" she said quietly, and she slipped the T-shirt 
off over her head. She had not been wearing a bra, and 
her tits jiggled a little as she settled back in the 
couch. 

Zoe had a great pair of tits. A nice solid C-cup, with 
small but firm nipples that were just begging to be 
sucked. We had not had any children yet, so her tits 
were still young and firm. I moved close to her on the 
couch and put my lips over her nipple and started to 
gently stroke it with my tongue, feeling it grow firmer 
with each stroke. My hand moved over to her other nipple 
and started to gently pull on it, lifting her breast 
slightly with each pull. As her nipple grew harder, I 
pulled slightly harder, holder the whole weight of her 
breast for a few seconds at a time.

I knew she liked a little nipple pain, and while my hand 
tugged at her nipple, I started to gently bite on the 
other, getting a little more aggressive with each pass, 
until I could hear Zoe making little gasps and shudder 
with each bite. 

Suddenly she lifted her hips and quickly slid her skirt 
and panties off and dropped them at her feet, then slid 
her hand between her thighs, and started to stroke 
slowly stroke her slit, which was already wet from my 
nipple play. 

Once her fingers were well covered with her juices, she 
moved her hand up to her breast, moved my hand away, and 
started to tug hard on her own nipple. This was how she 
always liked it. As she tugged she said, "Don't stop; 
keep biting gently on that one."

By now the nipple in my mouth had grown rock hard, and 
her breasts had become slightly firmer from her arousal. 
My dick was also now rock hard, and straining at my 
shorts. I just had to let it out, so that Zoe could 
start stroking it with her free hand. 

"Wait a moment," I whispered. "I just need to get these 
shorts off."

I sat up on the couch and turned to get up and remove my 
shorts, and as I did so I froze with surprise. "What the 
hell! What are you doing here?" It was Tracy, standing 
there staring at us. Zoe's eyes popped open to see what 
I was talking about, and seeing Tracy standing there she 
grabbed her skirt up of the floor and tried to cover 
herself with it (rather unsuccessfully). 

"I am sorry," said Tracy, "Brian stood me up, so I 
decided to just come back home. I walked in a few 
minutes ago, you obviously didn't hear me."

I was a little shocked and not quite sure what to say or 
do. Zoe just sat silently, looking very uncomfortable. 

We sat silently for a few moments, not sure what to do 
next, when Tracy broke the silence, "Can I join you?" 

"What!" I said, my eyes wide with surprise. "Would you 
mind if I joined you," she repeated.

My mind started racing. Was I dreaming, did my sister 
just ask if she could join my wife and me for sex! This 
was just too amazing to be real, surely not. My dick, 
which had lost its erection at the unexpected sight of 
my sister, was now rock hard again. I glanced over at 
Zoe, but she said nothing, she was just staring at 
Tracy, still clutching her skirt against her body.

I turned again to look at Tracy, and before I could say 
another word she started to unbutton her blouse and move 
towards us.

"Ummm, I don't know..." I started to protest, but I was 
cut short as I felt Zoe hand squeeze my thigh. I looked 
over at her and saw her eyes were fixed on Tracy. My 
heart started pounding in my chest, so hard I felt sure 
Zoe must be able to see it beating! Was this real!

My gaze returned to Tracy, "What are you doing? Why are 
you doing this?" I asked. By now Tracy had removed her 
blouse and I could clearly see her breasts bulging out 
of the small lacy bra she was wearing. My god! How many 
nights had I laid awake wishing I could get a look at 
those tits. Tracy was older than me. When I was 13 she 
was 15 and already fully developed, and as a teenager I 
had often lain in the bath stoking my cock imagining 
what they must look like, and now here they were, about 
to be revealed to me. 

I looked back at Zoe, convinced she would get up and 
leave, probably run to the bedroom and close the door, 
but she was just sitting there staring at Tracy. I 
turned back to look at Tracy again. As I did so she 
reached her arms behind her back and released the clasp 
on her bra, and let it fall to the ground. 

There in front of me were her huge, perfect breasts. 
They were more perfect than I could have imagined, with 
large dark nipples which were already standing erect. 
She moved forward towards Zoe. "Tracy," I said, "what 
are you doing. You can't do this." 

But she just ignored me. She knelt down on the carpet in 
front of Zoe, put a hand on each knee, and slowly parted 
Zoe legs. Zoe did not say a word or protest. She let go 
of the blouse, which fell on the couch next to her. 

I glanced at Zoe clean shaven crotch, and that's when I 
noticed a shining string of Zoe pussy juice dripping 
down towards the carpet. She was turned on!! Tracy 
looked into Zoe eyes, opened her mouth, and slowly 
licked up the drop of juice, continuing with her tongue 
all the way up Zoe slit, pausing on the small nub of her 
clitoris. Zoe leaned back, closed her eyes and shuddered 
slightly.

I could not believe what I was seeing, and my cock was 
now so hard, my heart beating about 150 beats a minute 
thumping in my chest. Was I really watching my sister 
eat out my wife! This was a dream (yes, an actual dream 
I have had many times) come true, only it was better in 
real life.

The problem however was I was now not sure what to do. 
You see, I am quite a shy and reserved guy, and 
generally don't make the first move. Thoughts were 
rushing through my head, "What are the rules? Is this 
on? Can I take my sister? Does this give me the go ahead 
to have her?"

I sat and stated for a moment, Zoe was clearly enjoying 
this, she was laid back, eyes closed with one hand 
tugging hard on her own right nipple. I could not 
believe it, I would never have believed my wife would be 
with another woman, least of all my sister. Then another 
thought crossed my mind... Had they done this before? 

I could take it no longer, I had to have my sister. 

I slowly reached out a hand, reaching under Tracy's 
chest to her huge tits that were sagging down towards 
the floor as she licked my wife's pussy. I brought my 
hand up and grabbed one of those dark brown hard 
nipples. Then I froze, looking for a reaction. The 
reaction I got was unexpected. 

Tracy raised her shoulder slightly, to give me better 
access. That was all the invitation I needed. After all 
these years of waiting, I gripped her nipple hard 
between my fingers and pulled down, causing her breast 
to distort and sag further to the ground. She winced a 
little, but I was now too horny to care. 

While I continued to tug on her ever hardening nipple 
with the one hand, I reached behind her with the other 
and lifted the short skirt she was still wearing up and 
over her ass, exposing her bare ass cheeks. She was not 
wearing underwear. I then moved my hand down, cupping 
her firm ass cheek, with my fingers probing till they 
found her soaking wet slit. When they did, they 
instinctively thrust forward into her warm soaking hole. 
God, it felt good. 

I drew my soaking fingers out, and brought them to my 
lips. My nose filled with the musty smell of her pussy 
that I had so often smelled as a teenage boy on her worn 
panties that I used to sneak out of the easing hamper. 

"C-can I fuck you?" I stuttered, almost too scared to 
make a sound in case it broke the magic. Tracy did not 
stop licking Zoe pussy, but I could see her nod. I 
glanced up at Zoe to see if she objected, and I saw a 
small smile on her face. She now had her hand on the 
back of Tracy head, forcing her face into her wet 
crotch. 

I didn't waste a second. I stood up, dropped my shorts, 
and freed my rock hard penis. It sprang out in front of 
me like a missile homing in on its target. I moved 
around behind Tracy, dropped to my knees, parted her ass 
cheeks so that I could see her dripping slit, and then 
rammed my cock forward. As I felt the head of my penis 
slip into her moist warm hole, a shiver passed through 
me! I had waited years for this, imagining it time and 
time again. 

I slowly drew my cock out just far enough that the tip 
was visible, and then thrust it in watching it stretch 
her opening, ramming it as far as it would go. I felt 
the tip brush against my sister's cervix. God, this was 
good! I was now balls deep inside my own sister. I 
thrust harder, firing her face into Zoe dripping we 
pussy again and again. 

Now Zoe opened her eyes, staring straight at me, a 
gentle smile coming to her lips. A few seconds later she 
tensed, her hand pushing Tracy face into her crotch as 
her eyes glazed over and orgasm after orgasm racked her 
body. 

This was too much for me. I had a ringing crescendo in 
my ears as my cock twitched and my balls tightened and I 
shot load after load of hot cum deep into my sisters 
vagina. I could feel the excess leaking out past my 
shaft and dripping onto her leg. I fell back onto the 
floor, exhausted. As I looked up I could see my cum 
dripping out of my sisters pussy and running down her 
leg. 

Tracy lifted her head, gave Zoe a long deep kiss, giving 
her a taste of her own slick pussy juices that now 
covered Tracy's face. Then she stood up, turned to look 
at me lying on the floor, and smiled. She took her hand, 
put it between her legs, drew her finger up her wet 
slit. She then took the finger, now glistening with my 
cum and her pussy juice, and licked it clean, and then 
walked out of the room.

I lay on the floor, staring at the ceiling for a few 
seconds, going over what had just happened in my mind, 
not sure what to say to Zoe. However, just at that point 
Zoe stood up and walked off to the bathroom to clean 
off. She then returned "You coming to bed?" she asked. 

I got up, and walked with her to the bedroom. We never 
ever spoke about that event again, ever. It was as if it 
never happened! 

END

* * * * * * * * * * * * * * * * * * * * * * * * * * * *
It's okay to *READ* stories about unprotected sex with 
others outside a monogamous relationship. But it isn't 
okay to *HAVE* unprotected sex with people other than a 
trusted partner. 4-million people around the world 
contract HIV every year. You only have one body per 
lifetime, so take good care of it!
* * * * * * * * * * * * * * * * * * * * * * * * * * * *
Kristen's collection - Directory 82