Does size matter? Of course it does.
But the more interesting question is, why?
Why do we care so much about being hung; the bigger, the better?
Size is important to most people of all sexual orientations; gay, straight, and bisexuals. And it's important to both men and women. But, it is not rooted in aesthetics, as we might believe - that it's strictly that a bigger cock is nicer to look at. It can be traced all the way back to the beginnings of man...it is embedded in us, really, on a subconscious level; buried deep within the human psyche.
The larger (longer) a man's cock, the deeper he could penetrate the vaginal canal at the time of ejaculation, thereby getting his sperm closer to the target and increasing the chances of procreation. The spreading of his genetic pool was of the utmost importance. It became a sign of fertility, and, therefore, virility. Two important links in the chain of human reproduction.
We're also quite impressed by the force with which we ejaculate. Of course, the harder we cum, the further we shoot, the better it feels.
But that also weighs on attraction, deep with in our subconscious, because it means the semen can be rocketed into the vaginal canal more forcefully, instantly attaining a lead over any competition.
Why do we find those big heavy-looking, swaying testicles so mesmerizing? What draws us to them?
Large, heavy-appearing balls (it was thought) meant more semen, more sperm, and a better chance to become pregnant.
Smaller (it was thought) couldn't produce enough to get the job done due to low volume
That said, we shouldn't care about size if we're simply interested in sex as a means of entertainment and pleasure - because for that, size doesn't matter at all. We can have just as much fun with a small cock
as we can with a large one
the sensations are the same
and they'll reach ejaculation no matter how big or small it is.
The recent Tantric Massage group session I attended was proof of that. One guy would be lucky to measure his boner above 3" - but he enjoyed it no less than the rest of us.