Thailand is an amazing place, and although they can be pretty strict it still amazes people that Thai people can be so openly gay. Lesbians, Dykes, Ladyboys and gays walk the streets of Thailand whether it be Bankok to Chiangmai it seems the gay community are openly proud and unappressed. There are many types of Lesbians in Thailand. but they can categorized into 4 groups.
Thai's have a unique way of naming sexual orientations, in fact the thai language take a lot of the naming system from the english language, I can only assume that since Thai's didn't really start using english in their language till about 100 years ago you can concede that before those times, being gay would be strictly taboo.
The "Dee" or lispstick lesbian is a girl who more often than not hates men. Not sexually but often she has had a bad experiece with a male, typically rape or being hurt emotionally and physically. She is still attracted to males though so she likes the "Tom". Eventually most "Dee's" end up married to a male and is not in a lesbian relationship for what she can do for the "Tom" but rather using a "Tom" for her own personal satisfaction. Her role in a relationship is more often very selfish. Most "Dee's" would feel repulsed at the idea of touching another woman sexually. A Dee is almost always very good looking.
A "Tom" dresses like a man, try's to talk and walk like a man, cut's their hair, wears baggy long clothes and wears something tight to not show her breasts. She only likes "Dee's". This girl will always be a Tom and never change, is happy to service their Dee and likes to be dominated. Most Tom's dream of an operation to remove their breasts.
Very rare is the "Les Bi". A girl who can swing both ways with a man or a woman. This behavour is very frowned upon by thai society as it is very promiscuous. The "Les Bi" would never come out and tell anyone what she is and likes. The Les Bi is comfortable in either role, but not comfortable in letting people know. She almost always has a boyfriend, and meets up with girls in her spare time. You might be married to her and she would continue doing this and you would never know she was a lesbian.
"Two Way" Like they say in thai is a conventional and wester style lesbian. Half of all thai lesbians fit into this category. She doesn't act out, doesn't dress out, just enjoy's the company of other women. She probably remains a virgin and will do so for a very long time. Because thai's may have a lesbian relationship the idea that they may marry is a very long time away. And to appease their thai parents some lesbians may marry a man, from what i've seen though they typically have a baby then go back to being a two way lesbian.