Your girlfriend's brat little sister finds you hanging out in your girlfriends bedroom, you're waiting for her to get off work and meet at her house. You threaten to tell your girlfriend that her sister is stealing clothes from her, since she's always such a brat. But bratty little sis won't let that happen. She threatens you right back and seduces you. She'll take your cock as long as you keep her secret and don't start trouble. Your girlfriends sister sucks and fucks in doggy and more, and somehow escapes just before your girlfriend gets home.