Do guys really care about chest size?

GIRL PLEASE! you are NOT flat chested . because if 32b was flat chested i would be considered hollow ! i'm a 32aa-32a ! i don't know how old you are but be happy with who you are and if you do still feel flat try push-up bras or heavier padded bras not that i recommend the heavy padded bras because ppl with start to notice you went from a 32b-32d, just saying . i hope i helped !