I think it's more about compatibility. Every man/woman has positions/feats that bother them, and that only leads to fear of the other person asking. So the key is finding something that "gives the same (or almost the same) pleasure," but is more amenable to both partners.
My wife loves to give head, a lot of head. She always did, but she wants to give it far more today than before. It's because she has some positions she just can't deal with. I never go there. She has no fear to give me any head.
Heck, sometimes compatibility is about the most simple of things.
Like men, I love to grope a woman's body, on a whim. My wife has DD-F cup breasts, the softest part of her body. I learned long ago that as long as I grope them in a way she enjoys, I can do it any time. As a woman with hanging breasts, she likes them "airated" regularly, especially the skin under where they hang. At the same time, my favorite thing, like most large, natural breast lovers, is to "hold them against gravity, feel the size, the softness." Needless to say I copulate her breasts, in pure, male, selfish lust, over a dozen times a day, and she loves it.
Yes, it gives me a major boner, and I want to bend her over and ram her on a whim too. But I wait for her to be in the mood, leaving every grope to anticipation only. When she wants it, she communicates that she wants it with her body, and we go at it. In fact, intimacy requires energy. So it's also very important for the woman to "be up for it," especially as she gets older. If she knows you're just going to play and not pressure her to "go the distance," she'll also be up for play any time.
Getting past those issues is key, or at least it was in my marriage early on.
Actually, I think a major, saving detail of my sexual relationship with my wife is that we always want to give each other oral pleasure. We fight over it. We 69 a lot. We have positions where we both get and deliver pleasure to each other.
I know the first few years of my marriage, she really got off with me having intercourse by not going in her deep, just shallow. My helmet hit her G-spot and I'd work it for as long as I could, to at least her first orgasm half of the time. Once she went, flooded and started quivering, it made for some of my best, unloads as well.
I'm not as young and she's "more open" in her cavity now, so it's rarely the case now. I've had to adjust, pleasure her in other ways. In fact, now she's more into the "banging her hard" (one of the reasons why I think older women should be with younger guys, but that's another story), although I work her up, long and extensively (especially with her begging for more oral every year), before inserting.
I think the key to long-term love making is making those adjustments, finding those positions that work for both.
Some women don't like to talk. In fact, some women avoid it and think the man should "just figure them out."
My wife doesn't like to me to talk, or should I say, my wife doesn't like me to "analyze." She likes me to act innocent, act surprised, not say much, and let her run her mouth (of which she's nastier than a pornstar when she's getting it good). I love it too. It took a bit of finding a balance, using a "pinch" as a "safe word" (to let the other know it's hurting), and other things.
So it might be that she doesn't want him to just come out and say, "give me doggie." Maybe it's starting the intimacy, letting her know beforehand, "if you don't like something, just pinch me and I'll switch." Frankly, a single position is not going to satisfy many lovers, at least the women I've been exposed to. They want variety in bed. In my wife's case, she loves to order me.
Yes, I'm her bitch. Of course, she loves me to reach a point of "frustration" that I just take control. That too took several years to learn.
There are many ways to play, role-play, give-take play, so many. Some women get worked up with that.
Early into our marriage, my wife didn't like to do several things. One was that she didn't like to orgasm from me giving her oral -- yeah, I know. It was because it was too intense. She kneed me in the check, hard, once when she blew her gasket, and had a fear ever since then.
So one thing we did early into our marriage was use play money. She had fixed prices. Ironically, BJs were the least -- if you can believe it -- but she fixed the prices based on her "effort" and "intensity." BJs were the least effort for her. Me giving her oral was $500 (the highest by a wide margin). Sometimes she'd "refund" some money if she really enjoyed it and it was the least effort. The money also lead her to her fantasy of "being paid" like a high class "tart" (the term I used once that she loved -- including "filling my tart" being that all we have is unprotected sex).
One time I threw down the $500 when she least expected it, tried to get out of it, I pushed her on the bed and went at her pussy for 45 minutes. She never pinched me and I kept it up. Slow, but consistent. She tried to get me to stop many times, but never used the pinch. I just over powered her and made her cum like she never did before. That's also when I first started to realize she had a fetish of being overpowered, and me being the guy that never, ever overpowered a woman ("no means no", never did it with a woman who was drunk, won't even have sex with my wife if she's been drinking).
The key is learning your woman and finding out what she likes.
While women are wired differently, sex is a priority for many women. It's finding what burns them with that priority that is key.
I'm still learning my wife after almost 2 decades. We fuck more now than when we first met and definitely more than when were first married.