Is she fat? Absolutely not! In fact, judging from that first picture she looks like she is underweight. You shouldn't see her spine like that. The second pic makes her look healthier, but still far from fat. Ball pythons aren't supposed to be built like corn snakes. They are heavy bodied snakes. It really bugs me when I see underweight balls because people can't seem to grasp the concept they are heavy bodied snakes and underfeed them

Actually those pictures where taken only about one minute from each other.