To all men out there who wants to spurt a lot of cum, like Peter North, how do you think to achieve that?

First:

Some men just produce more sperm naturally. Often these men are also horny dogs, highly active breaders. Cum production and doggy behaviour walks together.

Secondly: 

It's not a matter of diet.

It's actually about edging. If you repress orgasm a couple of times during sex or masturbation, you will spurt more. Your body will produce more man juice everytime your edging your self to climax and in the end you will have a massive orgasm and spurt plenty.

I love sperm, in my mouth, over my face - up my ass.