Anal sex - advice needed

Have you ever had anal sex?

How often do you have anal sex?

How do you prepare?

Is it possible to enjoy it?

Is it possible to do it without pain?

What are the risks?

What is your advice for me?

My boyfriend wants to have anal sex, and I’m super down as long as it doesn’t hurt or feel wrong.

One time we were having vaginal sex (with a lot of lube) and very fast that his dick accidentally came out of my vag and we accidentally sticked it back in the wrong hole (it was like super quick) and I got up so quickly and screamed so much... it was painful... so painful! And for the following days I was even a bit constipated 🙃

Then another time, in a hotel, I had planned it, so we had already lubricated it really well... so he put it in slowly but it started to feel really hurtful and not enjoyable at all...

I need to hear some advice some experience galsss ⭐️