It is normal to see their ribs, they don't get fat over them. A skinny dragon will have hip bones that stick out at the base of the tail and no nice round belly.
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A mans got to do what a mans got to do. A woman has to do what he can't.

Mom to:

1 little boy born 7/19/04
2 male RES, born 1999
1 ribbon snake, age unknown
3 FBT, ages unknown
1 female bearded dragon, born 5/2002
1 male lab mix, born 5/24/03
1 female calico cat, born 6/7/04
1 common musk turtle hatchling