Big Broodal Bunny

Harriet powering up on that moon juice, wobbling chaotically, always bursting open the wedding dresses she's tailored. Her firey desire channels through any sort of magical item, ballooning her proportions more and more and more.

She's far too aggressive, trying to force people to love her, but bop her 3 to 6 times in defense, and her necklace will snap and allow you to advance to the next level where she'll be even more gravid and bouncy.

The final twist, of course, is that she's defeated by being kind to someone and gets bigtime married in an erotic ceremony.