As long as the they're not so big as to be a health or comfort concern, I wouldn't worry about it. Sure, some people are gonna act weird about it (mostly out of envy, as others have noted). As for your concern about guys only liking you for your body, think about it this way: you may be attracting some shallow guys, but you certainly aren't repelling any nice guys. Guys that would like you either way, they're still there. As long as you aren't actively trying to "show off" your breasts, your friends shouldn't have a reason to complain (and they will get over it sooner or later, I'm sure). But don't actively hide them, either. Just go with the flow, accept yourself, and you'll be just fine.