i'm beginning to stroke myself to this right now. (i'll probably return with a cum on my hand and cock.) OMG- I wanna slide my cock in her while she fingers herself. If she wasn't nice and hairy, I wouldn't have clicked on it.
And a third one that is simply masturbation for everyone.
One generalization that can be made safely for most men, is that they experience a fraction of their full erotic and orgasmic potential.
The so called pulsating is a controlled technique called kegal exercise and can be produced by tightening your pelvic muscle.
What this video doesn't tell you is many women find it extremely difficult to have orgasms and some never experience them.