Anal Topic!

Sooo my boyfriend hasn't really tried anal with anyone except one girl and it was just the tip, apparently it hurt. I don't mean to brag buuut I think I know a lot about anal and my guess is that he doesn't know anything...here's the thing! He wants to do anal but my rules are that: 1. anal should only be done at my house 2. He needs to come over as soon asap after I shower n clean 3. Lots of lube. Now these are my mental rules that I don't think he's aware except #3, the reason it's necessary for 1/2 is because he lives 15 mins away and it takes me forever to get going with him and like I'm really afraid of having another bowel movement (I know maybe I'm being like super paranoid) but i don't wanna give him shit dick and I also don't wanna explain to him why # 1-2 are important lol like I clean really well and make sure nothings there but I'm so paranoid about it...here's my layout : getting clean(20mins), showering (15mins), outfit n make up (20 mins) car ride to his house maybe (15mins) foreplay (20mins) I'm afraid of like shit building up again in that time, sooo sorry for being graphic but can anyone give advice/tips on this and how can I explain to him that #1-2 rules are important to me lol