2003, Helen Boyd,My husband Betty: love, sex, and life with a crossdresser, page211:
Some of them are unaware thatt-girls are often heterosexual, and the idea that a genetic woman would enjoy being with a t-girl usually tickles them pink.
2008, Lannie Rose,How To Change Your Sex, page42:
Sex play with at-girl is fun. It's like sex play with a sexy girl, except for that extra penis and a tendency to be more uninhibited than it usually is with your average non-t-girl.