To understand this topic, you need to know what kegel excercises are. Some links for that:

Wikipedia (focus on the clinical)
The BBC (focus on the practical. The men's one can be found here)
Google gives you about a million and one more pages, of varying quality.

Basically, what they do is they excercise the muscles which normally only really get used during orgasm. Women are often advised to do them after childbirth to regain some of the muscle tone there (makes it feel 'tighter'). Men do them to learn how to control/delay orgasm. Both sexes have reported getting turned on by doing the excercises - which makes sense as they get your blood flowing there, which is one physical reason for arousal.

I started doing them a month ago (for nonsexual reasons, actually, so mner ). It did take me a day or so before I was confident I was clenching only the right muscles, and then another week before I got really good control over them. But once you get the hang of them they're effortless and invisible, so I do them during bus journeys and while waiting in queues etc. Gives me something useful to do.

Last night I did them in a LD.

It was mindblowing.

They felt unbelievably good, pretty much like I was in fact having an orgasm, which I did very quickly. And for some reason instead of the scene changing or me waking up, I just went again a few times. Wheeeeee! A really crazy experience.

So... has anyone else tried this? is someone else willing to? I'd love to find out whether this is just me, or just women, or everyone.

I'm also curious as to whether the muscles actually move. The fact that guys can have wet dreams seems to imply that they are not affected by sleep paralysis - as it is these PC muscles which clench rythmically during ejaculation (which is why guys can prevent ejaculation by holding them steady). So were the excercises actually doing something to me physically, or is it all in the mind?

Ideally you should already be doing the excercises for a week or two before you try, because when you first start they're very weak. But as I said it's really not a hassle to do them - I don't even bother counting or anything, just randomly kinda... tap them. Like tap tap tap hollllld... rest... hollld... tap tap... absent mindedly, like fiddling with something, only more productive. And it may well work anyway.

Any thoughts?