A brother and sister, both bored and frustrated, find themselves alone and horny. The sister, Michelle, starts masturbating in the bathroom, fingering her wet pussy and stroking her big ass. Her brother walks in, catching her in the act. They argue, but later, they decide to masturbate openly in front of each other. Michelle's eyes widen as she takes in her brother's thick, straight, huge cock. She fantasizes about feeling it inside her. Just as they're about to act on their desires, someone enters, forcing them to abruptly stop.