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Penny Runyon is a girl who was in high school with Penny.
Penny returns home and finds Leonard and Amy reproducing on of their ninth grade science fair projects. Amy wants to know if Penny remembers any of her high school projects. She tells the story of Jenny Runyon, whom she talked into letting add Penny's name to her project in exchange for learning how to flirt with boys. Penny got an "A" and Jenny got pregnant. Penny did throw her a baby shower.