LOL!
I think we have to cut him a little slack, he didn't say ALL women have bony knees. :-)
Knees ARE a bone!
Some women’s legs look nice in shorts or short skirts. The problem is that once the fashion is in place, the ones with less attractive legs - fat, excessively bony, varicose veins, oozing infected mosquito bites, bruises, etc. - follow it, too.