Maddy O'Riley, the quintessential stepsis, finds herself in a taboo fantasy come to life. She's always had a secret crush on her stepbrother, and one day, she catches him in the act. His cock is hard and ready, and Maddy can't help but imagine it's for her. She drops to the floor, her cute ass sticking up in the air as she takes him in her mouth. Her stepbrother grabs her hair, guiding her head as he fucks her face. Maddy loves every minute of it, even when he pulls out and covers her in his hot cum, marking her as his.