You're hanging out at your house with your buddies and your step-brother is home with his long time girlfriend. As soon as he is out the door she starts to tease and flash you from across the room when your friends arent looking. After asking her to suck you off in front of your friends she says no, scared they'll say something and asks you to come into the room later when you can. When you finally go back to your step-brothers room shes on the phone with him having phone sex. You decide to act out what your step-brother is promising to do to her and make her cum by eating her pussy, while your step-brother thinks shes just touching herself. Then you leave her to chill with your friends again and she gets desperate for cock. So cock hungry and desperate that she walks out in front of your friends in the living room and demands to suck your cock in front of them, just like you first asked. You fuck her on her back while she moans and screams "make me a cheating whore! I want to be your cumslut. Make me a lying cunt with your cock!" Then she tells your friends "maybe youre next, jerk off to him fucking me." She rides you hard, and youre slamming into her so hard her head rocks until finally you creampie your step-brothers girlfriend. As soon as you cum, headlights pull up in the drive and you are all scrambling to get dressed.