Ha Ha if I had a dollar for everytime I have been asked this, usually by PM.
Firstly if you look at Lb's in Thai and some in Phil some are gorgeous. I remember the first time walking into Cascades in Nana Plaza - the place was full of 40 or so Lb's. About 25 or so were "passable" meaning they looked like girls and I mean really looked like girls. So there is that aspect. To me a Lb IS a girl.
Secondly Lb's tend to be sexually aggressive - meaning they come on strong to you, they want you to fuck them or viceversa. Imagine a super hot girl begging you to fuck them - to me thats a turn on.
With that Lb's are much more likely to offer the whole menu. Anal on them is usually standard OS. I think its hilarious that most men crave anal but when its suddenly a Lb they say no way.
Thirdly if someone is sucking your cock does it matter if it is a guy or a girl - if it feels good it feels good.
Fourthly there usually cheaper, well not in Oz but OS. I've had freebies too. Lb's probably get 70% less customers than straight girks so they have to work harder to keep you happy.
Fifth, For me I progressed from straight girls to Lb over a period of time - now I do both - why? Variety. I think older guys progress onto Lb's as they grow older.
I think many guys have this image of a ugly tarted up guy in a wig trying to be a girl who want to fuck them up the arse as soon as they can. Nothing can be further from the truth.
If you are a straight male and can't get your head around the "gay" angle then Lb's are not for you. And thats ok.
If you are just curious, I would suggest going into a good Lb bar in Thailand and just sit and talk to them and see if you are comfortable or not. They will start rubbing your leg then your cock through your pants. You will look at their tits and they will whisper those things you wish your gf whispered to you. Take it or leave it. Its not for everyone, but it is for some.
Who's to say what is right or wrong.
BYVMD
Prof