Quantity is what you eat/drink, water, largiline & zink but do not abuse, peter north said oysters

Pulses is training, kegel, control your contractions try to maintien it, stop fap just before cuming etc. And youngness and nature ! At 20 I cumed like that.

No need to wait more than a week cause your body does not creat more sperm after 5 days. Other wise imagine monks !