From the ISG page on St. Croix:
St. Croix is very nice because the action is quiet and discreet. Both Christiansted and Frederiksted have a few pool halls with DR Ladies, and inexpensive by state side standards. But beware they are located in "can be dangerous tuff". Also they are all usually 30+ yeats old with the majority being 45+. All of the halls that have services provided have Spartan like rooms on site.
I suggest, if you have 1- 2 bills to spend towards the hobby and a little lyrics, to go to the Sunny isle strip club. They have a great young selection of usually State Side Africian American girls around 20 - 30 year olds with the majority being early 20's. No take out, but plenty to have in house.
Be Safe, don't be drunk, don't flash your cash and always wrap it up when in the Caribbean.
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It's cheap, easy and safe to monger here. Both towns are full of Dominican bars and the exchange with the girls is relaxed. No heavy pressure to do business. They know it's coming anyway so they let you relax and drink your beer and engage in small talk. I've been here 30+ years and I've never found it unsafe. Only take what you were going to leave behind anyway and don't be out at 1 or 2 AM and you'll be fine. I've always liked La Latina de Rincon in Frederisted. The girls rotate in and out over 3 months and there are a few other bars (good ones, too) a stone's throw away. The Caribbean scene is nice because of the ease. If the music is good. And it usually is (these ARE latin girls after all) they'll even dance with you while you have your beer. They know you'll soon be parting with your $50 bill and don't usually try to rush you. You're right. You CAN go to Sunny Isle and have a more stateside experience. But why? It costs more, the pressure to spend is greater and, in my opinion, the stateside girls don't have the ease and sensuality of our own Caribbean women.
Go to Strand St. in Frederisted close to the end by the pier. Walk 2 blocks away from the water on any perpendicular street. The bars are all in this area. I like Casa de la Rincon. It opens around 12 or 1 PM if you like it early. It's a small town so just walk the back streets (safe during the day) and you'll see the bars with the girls hanging around. "Rincon" (and several other houses) are all in the same area near the public market (usually empty). It's a quiet town. If you've got a $50 bill you'll be a hero.
There is almost no information on P4P in St. Thomas, or any of the BVI except Tortola. All that is really there is the suggestion to go to a strip club and ask if she will do takeout. I haven't been to USVI or BVI, but it sure looks like St. Croix is the better option for P4P.