I've been dealing with a guilty conscience for nearly a year now and I need a way to get this off my chest. A friend of mine suggested I share my story here to get it out in the open and see if it would help.
Last summer was an odd time. My sister was engaged to a guy we had fought over when we were younger. There's less than a year between us so this happened fairly frequently. We had both sexually matured at a young age so our competition over guys had been ongoing for years at this point. I was the more sexually active of the two of us and wasn't afraid to use that to my advantage. She was much tamer at first and as a result often lost out.
But this guy was different. For whatever reason, despite my flirtations, he seemed to pay very little attention to me and formed a much closer friendship with my sister. The next thing I know, they're banging each other, then dating, within a year they had a baby on the way and soon after they were engaged.
I still to this day don't know what I did wrong. We would all hang out and I'd catch him checking me out. I visited the two of them when they lived out of town for a while. He was laying on the floor with the baby while my sister was sitting next to me. I was wearing a skirt and slowly, discreetly opened my legs to reveal my smooth, shaved pussy to him. He restrained his reaction so I left my legs apart for his enjoyment. He looked up and admired every now and then. It took nearly an hour of this before my sister caught on and shot me an angry look.
That night, she confronted me. I was lying in bed and I heard the door open. There stands my sister in a robe. She said "I know you were giving him a show today."
"So? He liked it." And quite frankly, it got me wet to entertain all those old fantasies again. I didn't tell her this but the smirk on my face seemed to give it away.
My sister opened the robe to reveal a very sexy corset, garter belt, and thigh highs. "Well now it's my turn for a show. All you get to do is listen while he fucks me the way you wish he'd fuck you. He's mine, I won, remember that."
With that she was gone. A few seconds later I could hear the two of them starting up. I heard him object because her sister was on the other side of the wall and she said something along the lines of... "fuck it." I heard the bed squeaking, the headboard slamming against the wall, my sister moaning like a whore and narrating every action. But under her, I heard his heavy breathing, his grunts as he started to cum. I could picture him fucking her and that image turned to him fucking me. I dipped my finger inside of myself as I imagined it. I tuned out my sister and listened to his sounds. I remembered the smirk he gave me when I first gave him a glimpse of my pussy. Maybe...
Years passed. They had moved back to the same city as me. I loved that I got to see my nephew more often but it was difficult seeing him and still having these unresolved feelings. I fought myself before and after every visit to see them. I finally accepted that I would never have the opportunity I had fantasized about for so long.
Then my sister handed me the greatest opportunity of my life.
He called me when the dust cleared a little. He was obviously upset. He had just heard what I had been trying to save him from all along. My sister had cheated on him with some guy 25 years older than either of them. He had done nothing but take care of her and treat her like royalty and she went and fucked some old guy because of her unresolved daddy issues.
He asked me how long I knew. He wanted to know how long it had been going on. He had so many questions and he sounded so incredibly defeated. I told him I'd come talk to him.
I arrived and found him slumped in a chair. I sat down across from him and we sat in silence for a while. I didn't know what to say and neither did he. I finally spoke up.
