私の恥ずかしがり屋の義理の妹は私が彼女の下着で自慰行為をしているのを捕まえ、私は彼女のお尻に射精するまで彼女を激しくファックします。

My stepsister discovers me when she enters her room and watches me masturbating with her underwear. When she realizes she complains to me why I do that, I seduce her and say that I like the smell of her underwear too much and I end up fucking her hard until she makes me run.