Oliver Flynn is studying when his stepsister Kimora Quinn comes to the kitchen looking for a snack. Since Kimora is wearing a miniskirt and thong, Oliver is instantly distracted. Kimora is also super nice, so she strikes up a conversation with Oliver. She confesses that before Oliver and his mom moved in, she spent a lot of time alone feeling herself up. Oliver eventually figures out that Kimora used to fantasize about being caught masturbating, which makes him super uncomfortable. He closes his school book and takes off to his own room.

Kimora takes the opportunity to pull a dildo she calls big brother out of the kitchen drawer and stick it onto the counter. Climbing onto the counter, she goes to work masturbating that cock loving pussy. Kimora is so loud that Oliver can't help but overhear her. He makes it known that he's there after Kimora cums nice and hard, but she doesn't want him to leave. Instead, they decide it would be good for Oliver to help her fulfill her family sex fetish.

Tossing the dildo aside, Oliver steps between Kimora's thighs and shoves his dick home. Kimora licks her own girl goo off his cock and rubs him down, then gets back on her feet. Leaning over the counter, the stunning hottie takes a pussy pounding from behind, complete with spankings to her firm ass. Kimora gets on a stool with her thighs spread wide to let Oliver stand between them and bring her to one last climax. Feeling his stepsister's tight pussy pulsing around him is the last straw for Oliver, who pulls out just in time to bust a nut all over Kimora's nicely trimmed muff.