I prefer the every day, girl-next-door look and have never had a problem getting bareback head from the average-looking chicas. I've never had a covered blowjob in the DR. The only things I negotiate are the price and head "sin condom." Never been turned down, and I never pay more than 1500 pesos "plus propina if it's good." But keep in mind I'm usually hitting on the girl-next-door types. The dime pieces will cost more for sure, and many of them have stricter rules. To each his own.