Nothing is better than eating pussy. With that being said, the thing has got to be clean. If I know a woman is freshly showered I will eat her ass hole too.
Work in giving her a bath then if she's not. I don't know too many women that don't enjoy getting fingered in water. That's one, sensual way to clean out her pussy (or asshole if she wants it too).
I honestly think a lot of this is just attitude. If you don't worry about things, they are not a problem. That whole glass half empty v. glass half full view applies. I mean, do you think to yourself, "yes, I get to eat her out!" or do you ask yourself, "damn, I wonder if she's clean?" In fact, my wife frets over "being clean" more than I care. She will also trim at times and I could really care less.
Maybe it's because I grew up in the '80s, with beautiful brunettes sporting thick, matching bush and most of my pre-marital love making with women who had little to no trimming done, even into the early '90s. I look at bush as a piece of "crotchless lingerie" that I just need to part to get at the pink lady. So I find that thick bush bothers my mouth none, just like panties. I also find I can breath through my nose without any issue of smell, and in the case of my wife, any hint of that smell gives me a hard-on like no other.
Again, I think men who focus on the "reciprocation" of a BJ are probably so focused on many other factors, they can't enjoy it. In my case, I want a mouthful of pussy every, single, fucking time I'm intimate. I've always been that way. I even had a few dates in my youth where the woman feel asleep after getting hers, once more than once and once again in the morning, and I never saw her again.
Yes, one of the greatest mutual unloads I've had with my wife was a 69. But some of the best intimacy I've also had with my wife involved her unloading to my oral stimuli, and myself just holding her afterwards. I'm not worried let alone not focused whether I get to or not, because I'm always capable of unloading later if my lover falls asleep. And I was always like this, even before I was married and even without a steady lover, with no guarantee that she's going to be with me another evening to reciprocate.
And yes, I dated some women that didn't like to give BJs. I
never expected a woman to do so. I distinctly remember one woman I dated several times who clearly had a "guilt" driven BJ after she got off to my oral offering, and I had to stop her, because I could tell she wasn't into it. Although she did quickly discover she gave great mammary intercourse (tit fucks), after a little "help" from myself, and she loved watching it.
There's always compatible technique with every woman, one she enjoys, not feels obligated to do. Same with men.