Michelle and James, bound by blood and burdened by curiosity, can't resist the pull any longer. They meet in the basement, their hearts pounding in sync. James' hands tremble as he reaches for Michelle, her breath hitching as he touches her. She guides his hand between her legs, showing him how she likes it. He explores her, his fingers sliding in and out, her wetness coating him. She takes his cock in her mouth, her lips stretching around him. They're lost in their own world, their bodies moving together, when a floorboard creaks overhead. They freeze, their eyes wide, realizing they're not alone.