Girlfriend thinks her breasts are too big?

My girlfriend says her breasts are too big and that she hates them - she hasn't told me her bra size but she says this a lot I think it upsets her sometimes. She says she can't wear some of her clothes because of it and says it makes her look ugly.

I think their fine but don't really know what else to say? I have never really got involved with it to be honest.

Any advice on how to reassure her?
Girlfriend thinks her breasts are too big?
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