I was playing a game of cards with my little step sister. She is a petite ebony babe with a sexy body that I have always admired. We made a bet and the winner is supposed to receive a massage from the loser. Guess who lost... I did. She demanded her rubdown right then and there. I had her lie down on her stomach and began to rub her back. She had her striped sweater dress so everything was on the up-and-up. There was no funny business going on... at first. I worked my way down to her toes and things started to get heated. She started making perverted requests. I told her it was inappropriate, but she told me that she won the game and it was only fair. I lifted up her dress and started rubbing her juicy ass. I took off my shirt to get more comfortable. She asked me to work on her other side and then she turned over. I grabbed her small but natural tits and played with them in my big hands. I also spread her legs and played with her fat, hairy pussy. It was so tender and warm. She offered to massage me, too, even though I did not win. Since our step mom and step dad are out of the house, she wanted to get right to it. She pulled my flaccid big black cock out and stroked it until it got hard. She kept calling me "big step brother" and I called her "little step sister". It was so taboo that it really, really turned me on. I guess we are both perverts. She gently stroked my dick and treated me real good. It did not take me very long to edge and climax. I was putty in her hands. My nut oozed out all over her soft hands and I got some on my leg, too. I can't wait to play cards with her again.