I met Yumi at Bali last month. She asked me my age so I used that opportunity to ask her what her age was and she said "25". She said it in a curt way as if she didn't like answering that question. She looked older than 25 to me but in great shape. She's a beautiful woman. I would say she's 5'5 or 5'6 without her shoes but she wore heels in the beginning and looked way taller.
As for DFK, she didn't offer it to me even once and since I was meeting her for the first (and last time), I was too shy to ask her. Maybe she just didn't like the way I look. She was friendly to me but there was no IOP, just coldness. She also mocked me several times for my obesity in a subtle way by pointing to my flabs and smiling in a mocking way, which made me self conscious. Since I was self conscious, I said "Yeah I know I need to go on a diet". She replied "Yes you should go on a diet".
Which is all true but not what I wanted to hear from her. If you're obese, I don't recommend you see her. If you're lean or just a lil chubby, you should have a great time with her.