The siblings' bet turns into a wild, wet ride. Marissa's big tits heave as she rides Trey's cock, her pussy gushing with teen lust. Serena watches, then joins, her untouched cunt clenching as she takes Trey's thick shaft. Their moans fill the room, drowned out only by the splatter of their combined juices. As they collapse, panting and guilty, they know they've crossed a line, but the bet is won, and their forbidden family games have only just begun.