Ah, you've had her since a kitten, I assume? Isn't it amazing watching them grow?
From the looks of it, you did get her fixed, yes? Cats who aren't altered are sleek and slim. But she seems to have some weight on her (my cat that we raised since he was a kitten has some weight because we had him altered when he came in to our shelter). It's always important to spay and neuter your pets!