Dick?
Personally, I prefer the term cock, it has more energy to it, like cocking a gun when ready to shoot. lol
Why do "we" (horny guys in this forum) like it. Well, I suppose most of us like our own cock, why not like a girl friends cock? Actually, I love mine (keep trying to suck it, jealous of Liberty). Also, as babies we sucked tits and many of us, later on, sucked pacifiers. Perhaps there is an innate desire to suck on things.
In the case of a transsexual lover, sucking her cock is analogous to eating a ggirls pussey, it gives her pleasure and it is an extremely sexy thing to do and we like doing sexy things, don't we?
