I was reviewing this post and it reminded me of an experience around 40 years ago...

I was on a trip with my gf's family to the Ozarks. We didn't get a lot of private time so we were both kind of horny. We took a rowboat out and explored the lake. Not many people on it, lots of secluded coves...

You know how you can get a little past aroused? I'd been out of my mind long enough that I wasn't actually that excited any more. IDK if you experience this but I can get overstimulated and then not be as responsive. That was a factor in things being more difficult than usual.

We were still really new at sex. She tried blowing me (first or second time she'd done it for me, maybe her third blowjob at all overall) and I just wasn't feeling it. She stopped. "I don't know what to do." I suggested fucking. She agreed, put in a spermicidal vaginal suppository (not the most effective method - I don't think it's even on the market any more). I remember she was shy and had me turn away while she inserted it. Then I fucked her. She kept her top on, I think I was naked. I remember trying to fit my legs in the boat without having aluminum ribs poking me. I think in spite of being desensitized I still came quickly as I usually did back then.

It was not great sex but I got off and remain grateful she took care of me in my time of need. While she didn't get much out of this experience, she did have a much better time on other occasions.

Also - it was the Coors Light experience: fucking close to water!