My Sister Ginormica (female reader insert and Monsters vs Aliens)

I am the sister of Susan Murphy, or as some like to call her, Ginormica. Is it weird having a giantess for a sister, you might ask? Not really. In fact it's really cool! Even though I don't get to see her very much, cause, you know, she's in Area 50 something. And she's got a problem, and his name is Coverton. Why is he a problem? Do you even have to ask?! He stole my sister's quantonium! She got it back however! Bless the Lord! Nobody trusts him, except, unfortunately, the president of the United States himself. Anyway, this is the story of how I joined the story of Monsters vs Aliens.