Fall of the chocoholic

"Taste a statue" The disembodied voice whispered.
The plain and rail thin girl looked around the roman-styled room, Stocked with a dozen full-sized chocolate statues of beautiful women and an energetic chocolate fountain.
'I'll get fat!' she protested.
"It's magical chocolate. You can eat as much as you wish and you'll gain curves only."

An hour later her clothes could barely contain her. The chocolate tasted *amazing*, and wasn't making her fat at all. She swallowed another huge mouthful while eying another, even bustier statue.