What a load of old bollocks in this thread.
A few corrections/views.
Volume of cum has nothing to do with ball size. Sperm forms a tiny percentage of cum. The volume comes from the prostate gland, cowper gland and seminal sacks hidden deep in the body. The more time inbetween coming and the more stimulation appplied, increases volume.
Bulls are not bought by testicle size. <laughs>. Their musculture, frame, proportion are pedigree count. As I think we have agreed even a few healthy sperm are enough to impregnate. The genetic material farmers want is the size/muslce/etc the bull personifies, along with the genes the female brings to the off sprint. The human species seems to have evolved to all take into consideration those unquantifiable attributes of humour, intelligence, grace, manners, demeanor.
On the philosophical issue of what is masculinity, well I've had some great sex with "camp" gay men, who probably wouldn't want to be termed "all man". And why do so many muscle guys want to get fucked deep and hard? *Answer cos it can be great. And big cocks do not gurantee good sex, neither does a big whopper. Period.
No one has a definitive answer on what makes a man gay. I knew at 13 or so, most guys i know who are gay knew at that age, way before any conventional physical attributes became obvious - cock size, muscles, etc.
Masculinity has its physical aspect and its mental ones. The happy and multiple combinations those two facets provide the enormous range of men that bio-diversity provides. And what a good thing that is. They are all real. Stereotypes just allow threads like this to get us all enraged, with our own opinions.
Ah that's feel better. Now, I'm off to rip a tyre in half. Grrrrr