At last it was time! And I had the chance to have a brother-in-law all to myself, because my stepsister and his stepmother were in town for shopping. I didn't hesitate long and got his cock out of my pants. My stepsister always raved about what a horny fucker he is and I wanted to test that now. After I had blown his cock pretty hard, I slowly pushed it into my cunt. My stepsister was right. His rock hard acorn massaged my clit so much that I had one orgasm after another. But then suddenly my stepsister stood at the window and caught us ....