First Time Bottoming

This is a confession as well as asking for opinions and advice. I've had plenty of sex with men before, but always topped, which I enjoy very much.

Recently on a work trip, I was having drinks at the hotel bar and got to talking with a very masculine 40 something man who was also staying at the hotel. Small talk turned sex talk as we got more drunk. He was first to bring up MM sex. We were relaxed enough to tell each other a couple of stories. Both of us were 100% tops to that point. Eventually he lamented that it was too bad, because we could have lots of fun. I told him we could have fun in other ways, so we headed up to his room.

It didn't take long for us to be naked on the bed sucking each other's cock. He had a nice 6 incher, same as me. While we were 69ing, he started to grab my ass cheeks and rubbing my hole with his thumb, I didn't object at all and he proceeded to lick my hole. Felt fucking amazing. Eventually I ended up on all fours with my ass spread open and his tongue inside me. Next thing I knew I felt his shaft beginning to push inside me. I just went with it and pushed back. It hurt a bit but felt good. Took a little while to get balls deep. He started to slide it in and out slowly at first and eventually I was getting fucked hard! Anyway, he came in my ass, I came in his mouth. I went back to my room and went to bed.

Next morning, I woke up in pain. My asshole was hurting so bad that I could barely walk. It's been a few days now and I'm still really sore!

So here is where I need to know if this is normal. For those that have bottomed, did it hurt for a few days after? Please comment.