I want to try anal

Hey girl heyy, i rly wanna try anal sex with my man butttttttt (haha) i am really scared i am gonna shit on his dick or that its gonna smell like poo or somtbing 😭😂, we both really want to try it and ive told him about how im scared ima poop on him n that it might smell and he aaid he doset think i will poop on him and he said he dosent think i will smell bad. And i know your spostu do an enema or somtbing but i am kinda scared to do that.. any of you who have tried anal reassure me i wont poop on him or tell me how to clean my butt out?? 🤣🤣