Christmas With The Family

If you would have told me this morning I would be fucking my sister by the end of the day, I would have looked at you like you were crazy. Not that it was a crazy idea, just an unexpected one. Jill and I are 17 and happen to be twins. We also have been as close as brother and sister can be. We were also raised in a pretty sexual liberal household by most people’s standards so it wasn’t unusual for us to walk around in front of each other wearing very little or nothing at all.
It happened two days before Christmas. Mom and dad left early to go to a private party leaving Jill and I home to entertain ourselves for the night. A fire was roaring away in the fireplace and we sat on the floor playing games on the x box. There was friendly competition happening and as the room started to get warm from the fire, we found ourselves stripping down to just our underwear to cool off while we continued our game. Jill was stripped down in her skimpy black panties with the pink trim and matching bra that I have always loved seeing her in, and I in my boxers. As the game progressed, the competition grew fiercer and the room grew louder. “Hey! You are cheating.” Jill yelled. “You are just a sore loser.” I laughed. She then reached out and slapped my arm then proceeded to wrestle the game controller away from me. The more she tried to pin me, the more I laughed and I have to admit this wasn’t the fist hard on my sister has ever given me but I was growing more aroused by the second. I don’t think Jill was aware of it quite yet but she finally managed to climb on top of me in wrestling pin fashion as I was lying on my back on the floor. Usually I would put up more of a fight but with her sexy petite five feet two frame, I couldn’t resist letting her win. She grinned down at me as she straddled my body but her smile turned to surprise as she sat back and then felt the head of my hardness finally when it was poking her in the crotch of her panties. She looked down between her legs and saw my cock was poking out the fly of my boxers. She smiled once again then surprised me by reaching down between her legs and pulling the crotch of her panties aside and sliding her wet pussy down onto my dick. Surprisingly even with our up bringing, Jill and I have never had sex and until now, I can’t recall giving it much thought. I was amazed that she was brazen enough to finally do it but I was more amazed at how tight she was. “Are you sure we should be doing this?” I asked as I thrust into her- repeatedly feeling the wet heat from her pussy caressing me.” I don’t mind if you don’t” she whispered with a sexy yet satisfied moan while staring hungrily into my eyes. Still sliding up and down on my dick, Jill reached up and undid her bra and let her beautiful firm teen tits fall free. Her nipples are dark brown and very erect and were illuminated beautifully by the only light in the room which was the glow of the tv from our now forgotten game and the warm glow from the fireplace. I have seen her beautiful perky young tits many times and I have admired them each time but I have never seen them looking so stunning, tanned and almost translucent bathed in the glowing light as they are now. As I continued to thrust, I reached my hands up and caressed each of her soft milky globes while occasionally tweaking her erect nipples. Her moans grew louder while she met me thrust for thrust really getting into it. After several minutes with her on top of me, I grabbed her ass cheeks and rolled her over to where she was now on her back and I was on my knees between her legs.