Why do boys like staring at girls chest a lot?

As boys grow into men they have whats called testosterone and this can make them horny or sexually interested and one of the things they enjoy doing is staring at girls chests

This is because the males are sexually attracted to the females' breasts. These are a sensitive part to the females' body and they stare at them to satisfy themselves.

Response

Coming from a guy, its just because boobs are just awesome. They are one of the best things god ever made-he even made them for men so that gay guys don't have to miss out. They're just freakin' sweet