In the dim light of a cramped closet, a sister and brother succumb to their taboo desires. She tentatively takes him into her mouth, her inexperience evident as she tentatively licks and sucks. He guides her, hissing at the sensation of her virgin lips around his cock. She lifts her skirt, positioning herself to take him, her eyes locked with his as she slowly impales herself, her tightness stretching to accommodate his thickness. Their bodies rock together, their moans muffled, until they're both left shaking and spent, their secret bound by the confines of the closet.