俺は義理の妹のシャツを脱いでオッパイを見て、その上に来る。

My shy stepsister usually wears my clothes, she has the habit of always wearing my best shirts, I look for her in the room and surprise her with my favorite shirt, I ask her because I'm going out with my girlfriend and she likes that one, I ask her and I take it off, when I take it off I discover her beautiful tits and that makes me horny and makes me fuck her hard.