A nice little character generator. Only tried it a few times but it will be hard to top this:
Yuuko is a chubby girl who likes videogames. After you take Yuuko in, she tries to gain muscle by eating lots of junkfood, but leaves working out for “later”, ending up wider than your doorframes after just a few months. She notices that she can’t see the numbers on the scale past her stomach and smirks. You notice her take a few extra helpings at dinner that night.
Yuuko is a jiggly boy who is bright and cheerful. After you take Yuuko in, he eats everything offered to him, nearly tripling his original weight after just a few months. He ends up stuck in the pantry after eating nearly everything inside and wonders if he might have eaten a bit too much lately.
Yuuko is an hourglass-shaped boy who fantasizes a lot about romance. After you take Yuuko in, he eats everything offered to him, becoming huge after just a few months. He accidentally knocks his protruding gut with the refrigerator door while looking for snacks. He resolves to exercise more.