There are a HUGE amount of Asian massage parlours in Honolulu, most will offer extras, many of them are outright brothels fronting as massage places (more obvious and 'in your face' than our RnT+ equivalents that don't have guarantees). There's a particular area where many are congregated, about half way between Waikiki and the airport, near the Honolulu CBD iirc.
I didn't partake at all, did a little bit of research ~6 months ago. Started on WSG and went from there, though most of that is out-dated now it was a start, then somewhere along the line I found a site that listed all the options quite clearly .... like the Domain of Poon .... addresses, name of establishment, prices, quality of girls and services.
Just googled it for you, this is it here:
http://m.rubmaps.com/honolulu-massage-parlors-hi
There are also quite a few streetwalkers in Waikiki, few blocks back from the beach, near a little strip with a few bars. Again didn't partake so no idea of prices / scenario, just never been so tempted, a couple of them were absolute honeys including the hottest punk rock cauc I've ever seen. The things I would've done to her. <3