Grabbing her by the hips, Marcus slammed his cock home one more time, the orgasm washing over his body as he pumped his step-sister full of his hot cum. Feeling the hot liquid splash against her insides sent Norah over the edge, leading to her orgasm taking place at the same time as her partners. As the two orgasmed in unison, Norah began to moan louder and louder, risking their secret as they took each other's fluids.

Breathing heavy, Marcus put a hand around her mouth, trying to keep a semblance of quiet since their parents were most likely just upstairs. Pumping her with shot after shot of cum, Marcus...