Originally Posted by
GoldfishMan
I thought I answered that, didn't I? I'm assuming you want to know what the technique looks like.
It'll be in cowgirl position. Your dick would be lying on your belly pointing up, underside exposed. She'd be using her weight to exert pressure from her pussy onto your dick and start sliding along the length and vigorously rub the frenulum with her pussy. That's the part of your dick just under the head, it's super sensitive and the easiest spot to stimulate to make a man cum.
That's how they can do it, but it depends on the punter. If it's a very sensitive guy, I don't think she even needs to focus much on the frenulum.