Foreign escorts in Thailand
A few years back 99 percent of the escorts in Thailand were Thai but since the internet came about that have changed drastically. The big influx of Arabs to both Pattaya and the Nana area in down town Bangkok area also led to the raise in the number of east European and Russian girls coming to work in Thailand.
If you check the forums in Thailand you can see advertising about
Black Mistress in Bangkok
Tall German Strict Mistress
Philippine ladyboy working as a teacher but can also escort (I guess she has a work permit)
Chinese ladyboy coming to Thailand
Russian girls for your pleasure
Farang and Ladyboy girlfriend can fulfill your bi sexual fantasies
White male for visiting male in Thailand
Well you get the idea and most of the adverting is actually from foreign escorts and not the normal Thai girls you usually see. The question is how long the Thai Police will let the these people break the law before they enforce another crack down.
Being an escort in Thailand is mostly another word for prostitution in Thailand and therefore illegal. A few celebrities and stars in Thailand do the Japanese version of escorting in Thailand and call it a night after dinner but most of the escorts work all night. Normally prostitutes are just fined and released but if a foreigner is caught they might risk being deported and black listed from Thailand.