Sometimes. It all depends on the person as everyone finds different things pleasurable.
They're embarrassed because if they know other girls have bigger boobs than them, they feel like the girls that have bigger boobs are better and more attractive than them. If that's not the case, then maybe they think their boobs are too big. I don't know... You shouldn't be embarrassed about how big your boobs are. 
its when yu feel on a girls boobs(upstairs) but on the outside of her shirt(outsidies)
Where you play with a girls boobs. Like rubbing and massaging them with your hands. Twisting or flicking a girls nipples. that sort of stuff....you go UP on a girls body.
If they're nice those who feel so inclined to may deem a girl's breasts attractive.
Many men feel the gluteus maximus or buttocks would be the sexiest body part.
you don't because that's rude, no girl with any self respect wants her boobs felt up.
girls sometimes do. they do it sometimes to cheak for breast cancer. or for fun. i mean, im a girl and i luv feeling my boobs! seeing if theyre bigger than last time.
Some girls may talk about their breasts to their close friends, while others may not feel comfortable discussing that topic. It varies from person to person and their level of comfort and relationship with their friends.
for girls the cramps are killer they hurt! and ur feet getting bigger and boobs they tend to feel sore
gently please =)
You cant really know for sure unless the guy tells you... its a big debate over boobs, butts, or curves.
Because she makes all girls proud and not feel left out. That because in her movie she used little cones for her boobs in her movie