Sorry to sound presumptive here...

But a man doesn't have to 'cum' to experience an orgasm.

Orgasm is a sensation, basically manipulation of your nerves.

Ejaculation is the physical act of discharging bodily fluids in a state of orgasm.

So, he doesn't have to shoot anything at all to orgasm...

And women don't need penetration nor any true stimulation to orgasm either - ever heard of 'Cum on command'?

In the Karma Sutra, I believe it is referred to as the 'deer in water' excercise... Extended flexing, clenching, of a Kegel muscle flex will wreak havoc on any woman's spinal cord (were orgasms originate)...