Hey, I can relate! J Sisters Salon in NYC is THE BEST for waxing! They totally make you feel at ease. Having said that, a full Brazilian bikini wax (butt, vulva, bikini area) hurts!! But they do a good job compared to other places I've heard.
But you can just have your butt waxed, which in my opinion does not hurt as much compared to having the front waxed (in other words, a bikini wax that doesn't leave a landing strip - OUCH!). Here is their info:
J Sisters
35 West 57th Street 3RD Floor
New York Ny 10019
212-750-2485 OR 212-750-0170
J Sisters