Preparing for Anal Sex To get ready for anal sex, the first thing the receiver needs to do is relax. A hot bath or a massage beforehand is always a good idea to get prepared. The sphincter muscles around the anus won't let anything pass comfortably unless they're relaxed. Discuss the limits, expectations and techniques of your anal experience beforehand. There's nothing worse than surprises during anal sex. Make sure you and your partner are on the same page every step of the way. It's a good idea to have a bowel movement about an hour before anal sex, to make sure you don't run into anything you don't want to. You should also bathe the area, to remove any traces left by regular wiping. An enema is nice - and very thorough - but is not necessary for clean anal sex.