Haven't gotten that far in those books, but I'll definitely be keeping an eye out for it now.

I just finished Bangkok Tattoo, which is a thriller/mystery with some issues regarding culture but I was surprised to find that one of the secondary characters was mtf and it was accepted pretty easily by everyone in the novel, which also mentioned the mtf sexworkers in Bangkok (of course, half the characters were prostitutes or pimps so the topic didn't seem particularly out of place).