Ursula's Pet Mermaid...

What if Ursula had won and transformed the royal mer-family except Ariel into pollops and the only way Ursula will let them and prince Eric stay alive is if Ariel becomes her pet! There is no restrictions do whatever you like as long as you stick to the main plot,and pairing Ursula/Ariel! Like I said this is a challenge fic to all authors out there, I'd write it my self but I suck at it so step up and impress me!