Don’t worry about your body type or looks. These ladies see all kinds of people without issue. They see very old, grimy looking geezers. They see people with disabilities and people with physical deformities. They see huge monster dicks and little micro penises. The good working ladies (like those at Ginza for example) will treat you the same regardless.

My advice is book at least an hour, relax, and let the lady do her routine. Don’t lay there overthinking it, just be in the moment. You can touch them as much as you like (gently), take full advantage and do every you ever dreamed of doing to a sexy woman.., that’s the whole point!