Butt question

My boyfriend and I have been trying new things

The latest thing that he suggests was Anal. It hurt bad 😳his finger☝🏽in. And there was in 💩 on it after like 10 seconds. I stop that I was thinking about trying some type of detox. Idk. He’s a lil upset not with me but just the fact that it seems impossible. ☹️Our anniversary is coming up and I really want to do this for him. But I don’t understand how pornstars do it and not have a complete mess. 🧐please help‼️Leave all details. Tell me all of your stories.