The Dominating Bitch and Self-sucking Dick by Dragomys

I don't want you wasting any of it either.

I don't want you wasting any of that delicious protein that you have saved up in your bowels.

I've invented a device to make sure you don't waste a drop.

I promise I'll keep my mouth open, mistress.

These balls are filled with all kinds of protein and nourishment.