The post-orgasmic sensitive helmet phenomenon

Over the years that I've been meeting other guys for fun, I've noticed a couple of differences relating to the male orgasm. Firstly across guys of a similar age, some guys are able to cum very quickly if they want to, whereas other guys really need to build themselves up to it. For example, there's one young guy that I see sometimes who cums almost as soon as I get his clothes off, but I've been with other guys who're around the same age who need much much more attention.

Perhaps more interesting, however, is the issue of sensitivity to touch after orgasm. After they've cum, the helmet of some guy's cocks will suddenly become incredibly sensitive so that it's very painful for them to have it touched. With other guys however, myself included, there's not much difference before and after orgasm.

Just like the issue of the gay gene that I mentioned previously, it's interesting to speculate as to the evolutionary reason for the post-orgasmic sensitive helmet phenomenon. Is it simply meant to encourage guys to rest once the deed is done, and to save their seed for another occasion? Related to that idea, perhaps the idea is that the guy should move on and find another women to impregnate?

Another thought is that since the helmet is bound to be touched afterwards, for example on exit from one of the guy's partner's orifices, sexual activity for such a guy is presumably always expected to be accompanied by a bit of discomfort at the end. This surely acts as a deterrent to having sex, which strikes me as the reverse of what evolution would be trying to achieve? But maybe the sensation of the orgasm itself in such a guy is more intense and enjoyable to compensate?

It would have been interesting if I'd been keeping detailed records of the ethnic background of the guys that I've encountered who've had the post-orgasmic sensitive helmet, because my impression is that a lot of them have been east or south-east Asian. However, taking consistent notes on the sexual characteristics of the various men that I've had fun with over the years would have been a bit geeky. One can imagine the situation immediately after the finale:

"Ooooo, Arrgh," says the guy, accompanied by a sharp intake of breath, "Sorry! It gets very sensitive ..."

"That's interesting," I reply, reaching for my PDA, "where did you say you come from again?"

"Errr Singapore," replies the guy, relaxing a bit now after the event, "why do you ask?"

"Oh I'm just interested, don't worry," I reply, avoiding the question. But then I grab his helmet again, "And does that still hurt now?"

"ARRGH, PLEASE DON'T DO THAT!!"

But of course, I'm not that weird! I don't take notes on this or any other phenomenon.

I guess I find the post-orgasmic sensitive helmet phenomenon interesting because I'm not one of the guys who experiences it to any significant degree. And if orgasms for guys that do experience it are more enjoyable, I guess I'm just a bit jealous!