Slim women just look odd with huge boobs, at least when they get so big they seem more like udders.
My friend has natural huge boobs and needs to get them reduced cause the muscle is pulling away from her body and causing a lot of pain. She also had a cancer scare. It's too bad men can't carry around some of the burden for these things they just think of as sex toys.
If men had boobs there would be better sports bras and they would have been invented much sooner in time.
If men had boobs breast feeding would be a sport. They'd have milk spurting contests, milk production contests and send photos of their breasts leaking milk instead of the penis photos they send now.
If men had boobs they'd measure nipple extension and we would have all kinds of products for making your nipples harder, longer.
If men had boobs they'd be adjusting their underwear and their bra all the time.