Confined together, siblings Michelle and her brother can't escape the electric tension building between them. She catches him masturbating, his thick cock hard and ready, and can't help but lick her lips, imagining it stretching her. He notices her staring, his eyes filled with the same desire she feels. Their argument escalates, but so does their arousal, until they're both panting and desperate, their bodies aching for the taboo release they both crave.