Hi Emily, This is a very sticky situation that you need to be very careful with. No doubt it has to be a very weird awkward situation for both of you since you where very good friends with him when you where a man. To the positive side, he has respected you now as a woman and has shown interest in you. He already knows you want to take it further, and he has thought about it, but let him make the call. You can flirt with him and drop hints, but definitely let nature take it's course. I'm sure when he is ready and comfortable enough to have intercourse, it will happen. You want to make sure that the sex is enjoyable for both of you, and that you don't lose a good friend in the process. good luck, Chloe