Since I haven't been in England for many years, I can't comment on the current scene. I have had a few email chats with crossdressers, and had pics sent from a couple. If they were real, they were both very attractive, and they were both supposedly inexperienced. They were also excited at the idea of both sucking cock and being fucked. At the time, I regretted that there was an ocean between us. I would have taken a chance on meeting either of them, or, better yet, introducing them to each other, with thoughts of what a threesome could be like. Almost took a vacation and followed it up, but a large emergency contract came up, and kept me busy for several months, and I lost track of them. Hard drive crash also destroyed all the emails, so I really lost contact. Another wasted opportunity, but I did make a lot of money at the time...
I think there are opportunities almost everywhere to meet CD's interested in relations with a guy. Could be fun, if they look good, trying it out is the only way to find out if it works for you.