When my sexy step sister got stuck in the bathtub, I saw my chance. She was helpless and wet, and I was horny as hell. I walked in, pretending to help, but my mind was on her perfect ass. I stripped down, climbed in, and before she could protest, I rammed my cock into her tight asshole. The warm water and tight fit made it even better. She moaned and struggled, but I knew she loved it.