As I was chillin' on the couch, my step-sis decided to join me for a snooze. Little did she know, I had a huge boner ready to go. I mean, c'mon, with those curves and that ass, who wouldn't? I tried to keep it cool, but my friend's eyes were bulging. Soon as he left, I started getting frisky. I'm a big fan of cock, and my step-sis has got some serious skills. She's a Colombian goddess with a body like a professional housewife and legs that go on for days. We're just amateurs, but we've got the moves down. We went at it hard, with me taking her from behind and getting a good look at that ass. It's a sight for sore eyes. My girlfriend joined in and got a piece of the action, and we all had a great time. It was a wild ride, but I managed to keep my cool and hit my mark.