The Dragon's Hunger

You rub your aching belly, managing to soothe it some more before you fall asleep. Some of the internal squirming causes you to hiccup. After a short while (it appears to be about 3 days to outside humans) you wake up again, looking down at your belly. It's rounder now, soft and plump. Looking behind you, you see the same effected your bum and thighs. Even the base of your tail is a bit thicker.