The problem here is that US bathrooms are not really set up for a Soapy experience. In Japan one does their soaping and washing prior to getting into the ofuro.
The floor in the bathroom has a drain, and a hose on the faucet to allow soaping and rinsing outside the tub. Soapland spa's have taken advantage of this arrangement to add a sensual side. Most Soaplands follow a rigid script, and the locals know it. It means you get a lot of groping under the guise of "washing" followed by a blowjob. Putting the puck in the net is discouraged, as well as fondling the merchandise. She rubs it on you, but you are expected to keep your hands off. Locals know how to behave, but foreigners tend to want more. They often become jerks and this has resulted in an almost across the board ban on foreigners in Soapy's.
It can be very relaxing to be bathed in this manner, then have a happy ending. Japan is expensive, and a 90 minute Soapland costs more than full service with a young hottie here.
I wish there was one in LA, I can't even get my gf to provide this service.