Not by much. Except for Levy and Wendy, all the women in Fairy Tail are well endowed.

And Wendy is just a kid. We've seen what she'll look like when she grows up and she'll be big-breasted, too.

A lesser author would have made Levy insecure about it, but not this one (and good for him). She shows no sign of giving a damn. And as one of the most powerful mages in the guild, she isn't insecure about that either.