There's a little extra around the waist, but no fat rolls. The pictures are accurate, though if you look at them with a critical eye you'll notice that you don't actually get a fantastic look at her waist in any of them. She's got a little more pudge than you might guess from the pictures.
Everyone's standards are different, so it's hard to say with confidence, but if skinny isn't important to you, I don't think you're going to have any issue with Sophia.