How painful is it?

I have been with my boyfriend for a very long time now, and I think that I am ready to go all the way with him. I know that it is a big deal and I have been thinking about it all for a long time, as he will be the first. My mind is made up. Anyway, here's the thing. I will not have sex with him until I am on birthcontrol. Even then, I think I am going to have him wear a condom. because I am not on it, and I do want to do something with him.... I was wondering just how bad anal sex hurts, compared to vaginal sex for the first time. Anyone who can tell me... thanks.

Do not start your sexual practice with anal copoulation, anyway you loose the rich experience of the occasion.