Princess Celestia had tasted them all.
Treats from all over Equestria had fallen to her sweet tooth, eaten in the more peaceful evening hours when she could finally kick back and relax for a bit, stuffing her tummy until she feels full.

But then she heard rumors about a special treat Mr and Mrs Cake share with each other when they want to relax. A delicacy that supposedly tastes better than anything she tasted before, utterly sweet and fulfilling, in the most literal sense, so they say.

Immediately, Celestia contacted Mr Cake and ordered herself a batch of those special cakes for her own, eagerly looking forward to taste them herself.

Fetish story! Contains: fat, weight gain
I decided to rate this story mature considering its fetishistic focus.

Right now on hiatus until I reedited and uploaded another old story of mine.