義理の妹は私がリビングでオナニーしているのを見つけましたが、彼女はとてもムラムラしているので、私に手コキとフェラチオをすることに決めました

Sometimes I feel so horny that I masturbate in my living room, this time I forgot that my stepsister was home and she discovered me. But the very horny girl started to masturbate me, then she sucked my cock and we started a very deliciously handjob.