Are saggy on 22 year old gross (guys can answer too)?

Cuz that's how I feel, gross, and I don't even know how they got that way. I'm not fat or anything but I am on the short side. lol I'm a 36/34 DD and it's no fair when I see an A or B cup girl out in public with no bra on with the perkiest s EVER! Sorry if this makes me sound like a perv or a but I'm not lol I'm so self conscious that I'm afraid to get close to guys for fear that one of em will want to be my boyfriend -_- and that could possibly lead to marriage and he's DEFINITELY gonna wanna touch em then. O.O Yeah I know, I tend think about the future alot lol But seriously, is a lift even worth it or necessary? Guys what's ur opinion?