>>13146051/d/ - Hypercum General for example has a vast library of data on how to increase the amount of human ejaculate. There's a surprisingly large amount of autists using themselves as guinea pigs with various different chemicals / techniques, and a growing /d/ consensus for what increases the human sperm yield.
Not to mention the horseock general where anons were discussing how to surgically create a horse penis using modified stem cells bonded to a cartillage penile exoskeleton the other day
