Hi ya pal
I've been to Disney loads of times and never managed to find anywhere. I suppose it's not the normal question to ask on the side of the road 'Excuse mate, do you know where I can pay for a shag' haha.
I think if you are going to find anywhere, it'll be on International Drive. Having said that I believe, and I will stand corrected, that the police are very heavy handed with anyone found to be paying for services over there, which may explain the difficulties of finding somewhere.
I went to Rachels Strip club once in Orlando, which was great. Make sure to take ID, because you aint getting in without it, even if you look like an OAP!!! You may well quiz some of the girls in there, so I have attached a link for you to do some work before you go.
Have a great time, it's the most magical place in the world http://www.rachelsorlando.com/