NKD-319 Training session with Nao Yuki turns into full SM discipline

The client, Nao Yuki, asks for a more SM-style session, so the trainer starts at once. She comes across as straightforward, but a greeting slap turns her into a submissive masochist. The trainer notes her soft build, a silver filling seen through the mouth opener, large areolae, and unkempt pubic hair. After nose hooks, bondage, candles, whips, and deep throating, he uses her freely.