Title and description amended to comply with the new t&cs- Step-Mommy comes to see you, she misses you, and complains you spend all your time with your new gf. You know step-mommy hates her, she's jelous that a new women is taking all your time and attention. Step-Mommy starts to belittle her, calling over fat and ugly, a stupid bimbo. Step-Mommy starts to think, she has an idea. She tells you that she saw her out with a guy, hugging and kissing, she's cheating on you! You don't believe step-mommy, but she starts to rub your thigh, moving her hand up your leg... she's coming on to you, and you let her. Things move fast, and before you know it, you're balls deep inside of lying step-mommy.