I can talk about my experience as a female having it done. It was weird but when are first times not weird? It wasnt painful for me but I went and educated myself of prep and kinda what to expect. And the only reason I did it is so I know what's it's like when I do it to my partner since that's how our relationship works. And it wasnt as bad as I thought it would have been. We used lube like you're supposed to do and we took our time because no one wants to have their ass bleeding. That would be an awkward hospital visit. And he would only go further in if I okayed it. But there was a few times it got uncomfortable where we needed to add more lube. But once everything was wet and I was used to the size it started to get enjoyable. I would do it again but I'm not crazy about it like overs are. So really it wasnt as painful from what some other experiences were. But that comes with any sexual fantasies or kinky type of relationship. You find what you like and you work with that and you always have to stay respectful about your partners comfort zone. Also It wasnt quite like a reverse shit but I get why people compare the two. Hopefully this helped a bit. I'm open to answering as many questions as I can.
PLZ WHEN I TRIED ANAL I ALMOST THROW UP THAT FEEL LIKE TAKING A SHIT BUT IN REVERSE LMAMEOQKAKAN