Your sister is waiting on your bed and tells you that you need to fuck her. At first you say that you two shouldn't and it's wrong but then she says if you don't she'll get loud and wake everyone up, so you give in and fuck her. But you don't tell her you're going to cum inside her pussy, she gets so mad and you start fucking her ass to show her that you're still in charge, then you also cum inside her ass, that will show her not to be a brat to you! Name used: Jake