Rachel leaves for a PTA meeting and instructs her to behave. Her step-daughter is always getting into trouble and is very promiscuous. Her step-son is a parent's dream. He never gets into any trouble. Rachel reminds Karinne that she is still grounded and reminds Peter that he is in charge while she is gone. No sooner had the door closed than Karinne starts complaining about their step-mother. Karinne is a nymphomaniac and wants to go out and get fucked. She knows her straight-laced step-brother will never let her get away with it so she decides to have some fun and seduce him. She takes off...

Rachel leaves for a PTA meeting and instructs her to behave. Her step-daughter is always getting into trouble and is very promiscuous. Her step-son is a parent's dream. He never gets into any trouble. Rachel reminds Karinne that she is still grounded and reminds Peter that he is in charge while she is gone. No sooner had the door closed than Karinne starts complaining about their step-mother. Karinne is a nymphomaniac and wants to go out and get fucked. She knows her straight-laced step-brother will never let her get away with it so she decides to have some fun and seduce him. She takes off her robe and he discovers she is wearing a skimpy negligee that leaves little to the imagination. Peter tells her to put her robe back on but instead she sits down beside him and starts stroking his thigh telling him how horny he makes her. She keeps rubbing his leg until she reaches his crotch. His hard cock betrays his words. Karinne takes charge and pulls his pants down. She drops to her knees and starts sucking her step-brother's cock. She keeps talking to him as she licks his balls and cock, staring into his eyes like nothing is happening. Peter cannot take his eyes off the site of his hot step-sister sucking his cock. She moves up to give him access to her breasts. He pulls the negligee to the side and starts to massage her tits. She slips his cock between her breasts and starts to tit fuck him. The sensation is too much for Peter so he announces that he is going to cum. Karinne does not want to have to clean up cum so she tells him to cum in her mouth. He grabs the back of her head and jams her mouth down on his cock, shooting a big load in her mouth. Karinne can barely swallow the load. She is still licking the cum off the head of his cock when they hear their step-mother returning early from the PTA meeting. They barely have enough time to get their clothes on and back on the coach before she walks into the room. Rachel is pleased to see that her step-daughter did not sneak out. She never suspected just what went on. She announced that she had a book club meeting the next night, was very tired and was going to bed.