MMB-318 - My little sister can't be this much of a slut, who said my cute sister is a total whore? Well, it's true though...

My little sister is a top-tier student at a prestigious school. She's my cute, precious little sister. But some scumbag friends are eyeing her... I can't stand it! If someone else is going to take her, I might as well... Before I knew it, I was balls-deep in her.