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Biography

Susannah Laura "Susan" Test is a fictional character from the American animated series Johnny Test. She and her older twin sister, Mary are both super-geniuses and one of Johnny Test's older sisters who use their little brother like a lab rat for many of their experiments and inventions in their home laboratory, most of which he doesn't mind at all, unless he's bribed by them for one that he doesn't want to do. Both Susan and Mary attend school at the Porkbelly Institute of Technology (aka Porkbelly Tech) and harbor a crush on their next-door-neighbor, Gil Nexdor, who doesn't even know they exist. She is very prone to believing in the more scientific and logical explanations for things rather than the illogical and magical explanations, but is much more outspoken She is less open-minded and tends to be less conservative than her sister, but is more outspoken, where Susan is prone to believing in the more scientific and logical explanations for things rather than the illogical and magical explanations like Mary, who is more open-minded to hypothetical sciences such as extraterrestrials and cryptids. Susan is the object of affection for Eugene "Bling-Bling Boy" Hamilton, whom she does not reciprocate his feelings and finds him disgusting.