Quick question here to the females on this site: Do you get pleasure from anal sex?

Last night was the first time I could fully penetrate anally the girl I'm having sex with. Thing is, when I asked she said she was enjoying it, I didn't want to ask again and spoil the fun but I'm not sure if she said it just to please me or she was actually enjoying it.
I really loved the sensation of my dick in her tight ass, but I'm not going to keep doing it if it's just for my own pleasure because it's kind of selfish and this morning she told me her ass was hurting.

Guys, you are free to answer too if you have a reliable source of information