As a man, and carrying all the physical and emotional baggage that that entails, I think this would be an excellent introduction to the world of same-sex intercourse. (Putting aside the question of whether you actually want one or not.) I imagine he would be very enthusiastic and would smile a lot. For the ladies, I'd imagine that he would be equally hard-working in that situation, and would definitely try his best to make everyone involved have a good time.

Would you like to have sex with John Barrowman? How much sex?

I may write a fanfic where Captain Jack Harkness meets and romances Christian out of eastenders. He's had so much trouble with Sayid lately that this would be exactly the thing to put the spring back in his step.