I'll just add this. From what I can tell, all these experiences are all too common, and I'll go so far as to say that they are "normal". In that sense, I tend to believe that monogamy is abnormal and it's just our particular social/religious taboos that pretend otherwise. That's working out about as successfully as you'd guess, considering how commonplace divorce is. By and large I don't see things as black and white and there may be a reason why women end up turned off (or at least not turned on) by the men in their lives. Maybe they're bored too and would like variety, just as much as men do. So why can't we all just admit it and move on. It's just sex, ffs.
There is a reason why even today, after the so-called sexual revolution, which passed most people by so far as I can tell, that porn is still a thing. If guys could get laid pleasurably and regularly, would they be spending time and money watching someone else getting off? I am so damn sick of all the whining about porn in media circles, more Christian Taliban bullshit imo. No one ever asks, why is there a demand?
A guy I knew years ago used to "swing" with his wife. That's how he met her. They were committed to a monogamous relationship, in love, but played with others now and then, referring to it as "sport sex". Makes so much sense. He is the ONLY case I personally know, but I haven't seen him or his wife in 20 years so I don't know if they're still in that space. I hope so. One thing about them, they were always in a good mood with others and with each other.
Back in the day, people died young. Now we live to our 80s and continue to stay horny but we're still often constrained by silly societal constraints that have almost no relevance to our actual lives.
As to the women who regard sex as "icky" and who are reluctant to participate in some activities because of some imagined "yuck" factor, all I can say is "grow the f**k up!" I have no time for prudish 1950s Annette Funicello beach party Hollywood movies. I don't know how much of the bs we're surrounded with comes from pseudo-puritanical US suburban high school sweetheart culture. I wish it would go away, it's too dumb for words.
OTOH, I knew a guy years ago who refused to go down on his long-time gf. His reason, "It's icky, that's where they piss from!" Dumb jackass. She left him for another woman, good on her I say.
All my most adventurous sexual moments were with SPs. In my personal life, I just never met adventurous women, and that's just bad luck. It's possible that some of the women I met socially might have turned out to be "goers", to use the Monty Python phrase, but I never got those signals, if there were any. However, I was never the most interesting or sociable or close to the best looking guy in the room, so the odds were stacked against me in that sense. That's the luck of the draw, but thankfully I met some really nice friendly SPs that made life exciting. Best money I ever spent. I regret only not seeing them more often.