Bum Types 4

Ok can someone please explain the different bum types on females.

What is a firm bum?

What is a jiggly bum?

What is a hard bum?

What is a fat bum?

Which of the butts are soft?

Which of these butts are hard?

Can you please tell me the charscteristics of these bums?

Im going to put a link to 10 images. Can you please tell me which category the butts will fall into? (Jiggly, firm, hard, fat

Its all confusing. I dont know which ones are good and which ones arent