Name use: Mario. Your GF's sister comes over to your apartment expecting her sister to be there, but she isn't home from work yet. You let her come in and hangout until she gets back. While you two chat, she admits that she is glad your sister has you, as all of her past dates have been terrible, and at least her sister has found a good guy. She compliments you, saying how amazing you are for her, and in general. Calling you over to the couch, she begins seducing you, rubbing your legs, and eventually pulling your cock out to play. She sucks you, rubs your cock on her tits, and begins to strip. She twerks her ass for you, shaking and showing off her hot body. You fuck her doggystyle, taking the sister's tight pussy. Finally, you flip her over and make her cum in missionary, pulling out and finishing all over her pretty face. She cleans up and suggests she comes over again when her sister is away next. She promises not to tell if you won't