AKHO-133 Minami Natsuki, Bound Underwear Model: SM, Red Hot Fantasy / Fantastia Clan Abuse

A model in her underwear. Despite being told not to take off anything more, the ropes start to show, and before I know it, I'm being tied up without resistance. I can't help but feel aroused. My breathing gets ragged as I'm tormented by tight bondage in a sultry voice. I'm played with helplessly. I've been used so many times… I can't take it anymore, I say. With words alone, I'm made to obey like a pet, completely trained. But I… I'm truly just a model in my underwear.