Well if you're a young teenager you might have a few years of growing left; if you're towards eighteen or your twenties then you probably won't grow much.
And besides, that's only a tiny bit smaller than the average. As everyone else says, learn how to use it more effectively or find other ways to satisfy your girlfriend.
Guys with smaller packages have less egos and attitude. Makes them better lovers, because they have to use qualitys other than their package to satisfy and please their girlfriends.
She was totally insensitive and shallow. You don't need that from somebody. How would she have felt if you laughed at a part of her body? There's no need to get all depressed about it though! You're fine, seriously. Your girlfriend should make you happy, not suicidal. And, as if anybody is going to notice your package - get real! Don't get all extreme - surgery? No...you don't need that, it's what you do that counts!
There's more problems in the world than the size of your tackle, deal with it and get rid if she has made you like this. Or, just discuss it with her, say you really hurt me when you laughed about it and see what she says. Gosh, no pleasing some people is there!
I hate the whole size-ist attitude that today's society has. Your girlfriend was really horrible to laugh. Is she perfect? I doubt it.
How does having a smaller penis make anyone less of a man exactly? To be fair, men who are well-endowed tend to be arrogant and boisterous, to me that is not the behaviour of a real 'man'. So yeah, reading back I agree with the last 2 posts. Don't let anyone make you feel depressed about your body, they have no right to whatsoever. Especially some of the idiots who have made jokes about it on this thread. Seems like some people have an unhealthy habit of knocking someone when they're already down, which makes them sooo big and clever, don't you think?
The other day my gf of 3 months and I were fooling around and for the first time she started to venture downstairs. On seeing my dinkle, I heard her actually giggle. Once I probed her as to why this was as I was feeling utterly dejected she informed me that I was a little smaller than what she was used to....
That's all very interesting, but you've put that you're a girl in your profile, so I'm going to give you 10 warning points for either being a random bloke on the internet pretending to be a girl or some 'lady' who likes to pretend they have a penis. You choose.