Wendy Testaburger

Wendy Testaburger is the primary female character of South Park. She is a 4th grade student and Stan's on and off girlfriend. She became Pooh's friend in Winnie the Pooh goes to South Park: Bigger Longer and Uncut.

Trivia

 * Unlike the four boys, Wendy has, so far, only appeared in Winnie the Pooh goes to South Park: Bigger Longer and Uncut.  It's unlikely she would appear in another crossover.