My wife is not an enema fan, but we love one another, and we've both compromised and found a way to make it work. I'll prepare my enema, then bring it into the bedroom hanging on an IV pole. She lubes me up as well as the inflatable retention nozzle, then inflates the nozzle. She'll then lay back on the bed and spread her legs while I position myself between them. After making sure she's taken hold of the hose and pinched it off, I'll release the clamp. At that point, it's on.
I love going down on her, and she loves it even more. The idea is that I give her an orgasm while shes give me my enema. Generally, our technique is that she'll release the water for a few seconds at a time, then pinch it off again. Sometimes, though, she'll tease me the whole time I go down on her and not release the water until she comes. Either way, she always comes and I always get a full, warm enema and a raging hard on.
Appropriately, then, our next order of business is a thorough shagging in doggy position. She'll roll over and present to me, and I am more than happy to oblige. I fill her pussy and then begin stroking in and out while I hold my enema (again with the aid of the inflatable nozzle - learned the hard way that was a necessary precaution). After I come, unfortunately, I usually have to make a hasty retreat to relieve myself - dragging behind me the IV pole to which I'm still tethered. We both would prefer to snuggle naked for a while, but that is part of the compromise.
I'd love to give to her, but she is just too hung up about it to enjoy it. She's been a sport and tried a few times, but only when she was really constipated. Between the discomfort of taking an enema in that condition and the fact that she's coming into the experience pre-squicked, those experiments did not convert her. No big drama or issues, but she was definitely just glad they were over and got no pleasure from the experience.
So, she'd rather enemas weren't involved at all, and I wish she would both give and receive a couple of times a week, but we've both compromised and figured out something we both quite enjoy a few times per month.