Your sister catches you looking at her ass in her room. She is topless with just a thong on! She tries to tease you about it, showing off her thong, smacking her ass, shaking her ass, twerking, and then begs you to fuck her! You fuck her doggystyle (implied without dildo) and begs for your cum! Can't get enough so you fuck her missionary with her legs back (implied without dildo) and she begs for more cum!