In a strict, no-nonsense tone, a dominant woman informs her crossdressing submissive that men's underwear is now forbidden. His eyes widen, but he knows better than to protest. She hands him a lacy thong, smirking as he hesitates. "Put it on," she commands, "And don't you dare complain about the fit or the feel." He gingerly slips it on, his cock twitching at the unfamiliar sensation, the cool fabric caressing his balls. She watches, pleased, as he adjusts to his new, humiliating undergarment.