The Asking [Winter]

Winter is a twelve year old girl. Her parents couldn't afford to take care of three kids, so they separated her from her twin brother.
In middle school, she sees a kid who looks like her. A boy. He is completely different than her, though. She is nice, he's rude. She's shy, he's got tons of friends. She's sad, he's always joking and happy.

Maybe he never had a twin sister. Maybe his parents were joking about that. His sister insists it's true, but Will doesn't believe it. Sure, the girl at school who he bullies has an uncanny resemblance to his parents. He doesn't even know her.
If she was his sister, what would he tell her? She'd never believe him.

The adults in this story belong to Cartoon Network and The Amazing World Of Gumball.