just curious cos ive seen videos where they manage to shoot in their own face

I find taking your time and edging usually does it. I don't know about anyone else but not wanking for a length of time can helped but for me more than a day or two without cumming tends to make me cum less rather than more. To get a really big load I tend to masturbate on and off for a day or two, but not cum, then a good long session of edging and I cum in a good volume and intensity, and let the spunk stream out wherever it wants to go.

Probably the first thing to do is hold off shooting seed as long as possible. A few days to a week.

Exercise and make you body as fit as possible.

I am sure there are specific drinks and foods to help increase the amount and potency of a semen release.

Practice, practice, practice. Best of luck.

Take yourself right to the PNR as many times as you can for as long a session as you can possibly take it. Take a few breaks. Cold wash cloth every now and then. Re-lube and start over. Stretch it out over several hours, the longer the better. Have a whisky and dull it down. Let yourself go limp and then work it back up. When you just cant go any further, you'll know when to let it blow. That's as big a load as you'll ever have.

Look at a photo of Kylie Minogue's arse. You'll come like a river.

Hah, that is a nice ass...

Let me suck you off and I'll guarantee you'll end up with nuts the size of dried Peas!