Note: This story was dynamically reformatted for online reading convenience. Who Knows (b/g, bro/sis, bro/sis FM/b, bi family orgy, imp?) By Boy Trainer Chapter 3 So there I was, battling pirates on the sticky marshmallow deck of my aircraft carrier. My weapon of choice... a swordfish which I grabbed out of the Jell-O Ocean just before the pirates boarded my vessel, when suddenly my eyes popped open because something strange was happening to me. I felt something tapping on my penis. It was something warm and soft, but Mike's arm was still wrapped around my upper right thigh. We were just as securely cuddled as we were when we went to sleep. I thought to myself that it was nothing and that probably it was a part of my fun dream. A dream I desperately wanted to get back to. I shrugged it off as imagination and tried to go back to sleep and retake my ship. I liked my marshmallow decked aircraft carrier and I wanted it back. Unfortunately three dogs were chasing me now and they were not happy at all. Just then I ran into a red brick house, where a boy in a yellow cowboy hat was sitting in his living room watching some radio talk show. I was going to ask him where the back door was, but I woke again. This time I kept my eyes closed and found that my dick was being softly caressed by someone. I just pretended to remain asleep. After all, it wasn't exactly hurting me. Even if I had opened them, I wouldn't be able to see anything anyways. Mike and I always like to sleep in total darkness. To insure total darkness we had hung some black curtains over the ones which mom insists be what people see from the street. I knew it wasn't Mike because his arm was still draped over my thigh and his other arm was splayed out between him, my back and the mattress. It had to be one of the girls, but which one? I soon felt warm and moist air bellow over my dick and in moments I was feeling the definite sensation of someone licking then sucking on my dick. Yep, someone was definitely sucking on my dick. I knew that feeling all too well and I wasn't about to complain about it, but damn it, it was such a nice aircraft carrier. Trying hard not to make any sudden movements I slowly and carefully lifted my right hand and placed it on the back of whosever head was now bobbing up and down on my four inch shaft. This was new. Judging by the texture and the fullness of the hair I was now holding, I knew the head doing the work could only be my sister Beth... BETH? She sucked me for a while longer and then with anticipation in her movements she unlatched and whispered. "Roll on your back Stan." I didn't argue. I just shifted so that I was now on my back and carefully I moved Mike's arm so it was now over his own side and his hand was wrapped around his own thigh. While I was doing this Beth crawled over me and neither of us said a word as she reached back and guided my dick to her wet and heated hole. With a few soft thrusts lifting and lowering in the darkness I found that I was fully impaling her in no time. Yes, this was definitely something new. It felt good enough that I didn't feel I had to do anything, but lay there and let her do what she wanted. I had no interest in her tits and she had already made it clear that she wanted no lovey-dovey crap from either of us, so I locked my fingers behind my head and let her have her fun. Slowly, she lifted and lowered herself, probably to insure that nobody else woke up. She leaned down over me. Her head softly banged against mine and whispered in my ear. "Just let me do the work and don't let any of your sperm get in me. I want Mike's baby first." (First?) I thought. I nodded, but I don't think she saw me and I don't think she heard it. I was fighting the urge to grunt in pleasure. I too wanted Mike to father a baby with my sister, but the image she implanted in my mind of me impregnating my own sister... Well, the only way to describe it would be a singular bold of lightning in a wide open field. "CRACK!" Instantly I had a new fetish which would stick with me for the rest of my life. I felt a hand rest on my chest. It was definitely Mike's hand. I thought he might still be asleep and that he was only shifting in his sleep, but then his hand crept slowly and purposely downward. He was definitely awake and I almost felt fright that he would get jealous or something. His hand slid up and across her knee softly and then I felt his fingers gently digging around our juncture as Beth raised and lowered herself. Beth lowered herself all the way down trapping Mike's hand between us and practically mashing my balls with her ass. Then she rose up again and she stayed up about an inch or two and that's when I discovered why. In seconds I felt another hand sliding around my leg and between me and Beth behind her ass. This had to be Sue. She was doing the same thing Mike was doing only from the other angle. My dick was surrounded by fingers, which softly touched between my dick and then Beth's cunt and then intertwined with the other set of fingers. It seems they had discovered each other. It felt like a shadow puppet show. The two sets of fingers were totally ignorant of each other and then they touch and back off, but then to make sure they retouch and caress each other lovingly. They both pulled away and then Mike crawled over to the other side of the bed. After Beth was satisfied that Mike and Sue were doing the same things we were, she seemed to relax. I guess she needed to know that her fucking me was ok with Sue and that we weren't breaking any self imposed rules. That's when Beth became a wild girl and started slamming herself up and down on me like a pile driver and I learned fast that something that was supposed to be pleasurable can also cause a great deal of pain. Her pelvic bone and mine were being slammed into each other so hard that it felt like I was being hit in the groin by a five pound sledge hammer. I didn't say anything though; I just gritted my teeth in agony each time she slammed down on me. I figured she had to be feeling the same pain and would stop, but she just seemed to do it harder and harder. I felt tears rolling down my cheeks. It was a lot like the game we play in school where we take turns punching the other in the shoulder and the first one to flinch would looses. Needless to say she needn't worry about me ejaculating in her... Hell I was surprised enough that I could even stay hard. It got to the point where every time she slammed down on me, she would moan in ecstasy and I would grunt in agony. I mean Mike likes to fuck me hard, but this bitch made Mike look like a sissy-boy. Finally she collapsed on top of me and then in desperation I rolled her off of me and rolled down off the mattress gripping and rubbing my pelvic bone and crying like a five-year-old who just got spanked. The next thing I knew the lights came on and my mom and dad were standing at my door. "What's going on in here and why is Stan crying?" Dad asked. "I don't know." Beth shrugged. "We were just fucking and he rolled off the bed and started crying." "Chuck, you don't think it's his appendix; do you?" Mom gasped and knelt down beside me. Dad picked me up and carried me to their room where he laid me on their bed. I was still bunched up in a fetal position from the pain. "Let me see son." He said and started to stretch me out, but I recoiled into a tighter ball. "I'm ok dad, leave me alone." "Stan, you let your father examine you. We need to know this isn't your appendix." "It's not my appendix." I sobbed. "What happened then?" Dad asked. Knowing that I just had to be bruised from her brutal assault on me I rolled over and sure enough amongst my sparse and almost nonexistent pubic hair was a dark blue bruise. "Go get me the ice pack." Dad told mom and she promptly bounded off franticly asking. "What happened?" When she came back dad took the ice pack and laid it carefully on my pelvic bone. The coldness caused me to take in more air than my lungs could hold, but at the same time it felt wonderful. "Your sister was on top; I take it?" Dad asked "Yes." "You mean she? Oh, you poor baby..." Mom cooed. "What did she do dad?" I asked now soothing. "Well son a girl has what's called a clitoris." "I know that dad." "Well... That's located just above her cunt and that was feeling so good she didn't know she was hurting you." Mom almost giggled. "Well, I don't want to do that ever again." I exclaimed. "Well..." Mom smiled. "You just need to learn how to position yourself so that don't happen. It could be that you are so thin you had no protection. Maybe you need to learn how to lie. You just may need to sit up a little or use a pillow under your back." All the while as mom talked I noticed dad was using his fingers to massage around my bruise and under the ice pack. Then he started to palm my balls. Mom crawled up on the bed and grabbed a pillow. "Here let me show you." She said and helped me sit up as she slid a pillow under my back. That's when dad leaned in and took my dick in his mouth. I hadn't counted on this, but again I wasn't going to complain. When I grew to hardness, dad unlatched and that's when mom straddled me and lowering herself on me she said. "Don't worry Stan, I won't hurt you." "You see baby." She soothed as she fitted herself over me. "You just need to know how to lay out when a girl does this... You're just a little too thin, is all." Then she surprised me with. "Oh god chuck, this kid's got a hell of a nice pelvic bone. Why don't you fuck my ass while I fuck your son's dick?" "I see you finally found an excuse to fuck a boy." Dad said knowingly and with the grin of a Cheshire cat. The feeling was incredible! My dick couldn't have been more comfortable. If I could have I would have climbed right back into the same orifice that I came out of when I was born and stayed there the rest of my life. I grabbed hold of her wide ass as she rocked back and forth on me. She began to flip her hair out of her eyes and then flick it back and soon she was moaning, then whining and all the while her huge tits were bouncing like two in step basketballs. "Oh yeah babies, that's it!" I felt dad's legs between my knees as he pummeled mom from behind. I even actually felt mom's clit as it slid up and down my pelvic bone, but in no way did it hurt me. By reaching around mom, dad grabbed the back of my head and shoved me forward into mom's cleavage. "Suck on these for a while, if you want something to suck on." How he knew I was thinking of sucking his dick I have no idea. It really wasn't my thing, but I figured that it was only skin. So I shrugged and latched on to her left nipple... Or was it her right? No, my right was her left... Right?" "Oh... yeah, baby!" Mom cooed. "That's it, suck harder!" Then suddenly and as if it were not only planned, but choreographed and practiced dad grabbed my thighs and mom lifted up just enough for dad to yank me so my ass was almost hanging off the bed and then I felt his huge meat entering my ass. It was already slippery from mom's juices and my ass was so used to being fucked, that I simply allowed him access without even the thought of resistance. Obviously he was much larger than Mike, but I was such a fuck whore by then that I'm sure my ass automatically engulfed him like a snake eating an egg. As I said before, when it comes to me and Mike I'm the bottom bitch. Suddenly and all too soon dad found my prostate and gave it one good shove. Oh that did it and I started pumping my incestuous sperm right up mom's womb and there was nothing that could stop it. "CRACK!" Dad shoved in and hit the spot as mom lowered down on me and he backed off and she went up and dad shoved back down. God I was exploding with every movement and the thought of me impregnating my own mother drove me insane! After I had finished and couldn't expel anymore of my incestuous sperm into my mom's cunt, I felt the familiar throbbing of a dick as it blasted its own seed in my ass. Each throbbing pulsation was so strong that I imagined a flood of cum like would come from a fire hydrant. I could actually feel dad's engorged urethra and counted off in my mind twelve strong contractions before my ass spat out his quickly wilting dick like old and flavorless chewing gum. With all of us panting like we ran the quarter mile I pictured my sperm seeking out my mother's egg. I knew the odds of me actually impregnating my own mother were astronomically low, but just the possibility overwhelmed my imagination. Dad darted to the bathroom and returned with a warm, moist and soapy washcloth. He cleaned all of us off and then picked me up in his arms like a baby while mom straightened the bed. Dad laid me out on the bottom sheet and we all cuddled the rest of the night... Aircraft carriers be-damned! I had a new overwhelming desire. To make our family tree look like a flag pole.