Thanks for the input. The pictures aren't great, and yes I've seen the gravid-bloat comparison. If she(?) is gravid, she hasn't been gravid for long because when I picked them up from the shop she just looked plump. Her(?) skin doesn't appear shiny when she's basked for a little bit, and both newts are quite active and eat regularly. How often is it that a wild-caught firebelly is gravid when taken from the shop?