Kururugi Mikan, in "The Prohibited," delves into a sister's taboo lust. Her brother, a virgin, becomes her target. She seduces him, her breath hitching as she guides his innocent hands to her body. He hesitates, but Mikan's hunger overpowers him. She takes his virginity, impaling herself on his length, their moans echoing as they defy societal norms. Nakadashi marks their forbidden union, Mikan's pussy overflowing with their shared sin.