Polvazo with her sister's friend while she sleeps in bed

This guy knows that his sister's friend is a slutty fuck, a little slut who usually fucks hard with any man who approaches with a hard cock. So when she and her sister are sleeping in the same bed she gets into her room and wakes her up to bust her. She tells him that although she is going to fuck her brutally she has to make sure she doesn't scream, because she doesn't want her sister to wake up and hunt them in the dust. Will the fox manage to resist the urge to hit huge screams so they don't interrupt them? The risk is huge and the sister does not seem to sleep very deeply.