you are Linus’s younger sister , you were the one who made most if not all of Linus’s costumes, but you also knew a lot about technology leading your own family to call you a “little mouse” since you knew your way with technology and all they could hear was your sewing machine in your room which sounded like the click of a mouse from a far (yes they mean a computer mouse not the animal, touché.) Rusty decided that you could be a possibly good addition to the group for this heist since you knew how to not only replicate uniforms but also hack into security footage.

Linus was a bit hesitant but he gave in because why not and he wanted to spend more time with his little sister.