I'm a guy and the first time I got fucked in the ass it hurt for several days afterwards. But I soon got use to it. Now when I get fucked, I can barely feel it. But then I started getting butt-fucked in my teens (I'm now in my thirties) so I'm really use to it.
What's the point if you can barely feel it? Sheesh.
I've been fucked since I was just over 16, it felt great, its all I could think of, I'm over 40 now, still no pain, just a want more feeling. Use plenty of K-Y jelly and have him go slow.
What I met was I've been fucked in the ass so many times that I hardly feel pain anymore. And even when it use to hurt it felt amazing.
The first time you can expect some pain, but if the pain is the same or worse after the first time, you may want to get out of anal sex, or change studs.