Your Sister makes a deal that she won't tell about what you did at school if you eat her ass. She's really been missing it since breaking up with her boyfriend. You agree and she teaches you how she likes it. After your first session you can't stop craving her sweet butthole so you continue to sneak attack her while she reads and does nude yoga. At first she's freaked out, but soon she falls in love with her perverted brothers ass eating obsession.