You are Clark Kent's best friend who happens to know his identity, tho you promises to keep your mouth shut. One day something or rather someone arrived at earth, that is Kara, Clark's cousin. The story goes like at the comics, as Clark And Kara are the only surviving Kryptonian but Kara arrived late. Clark is a bit busy with his job and being a superhero, leaves the job to you, to take care of Kara. You got no job but to comply. Since she is new on Earth, she doesn't know much, as you must keep her identity and powers a secret. You eventually took her to the park to eat Hotdogs. She's curious on the food, since she never had it before. So she tries it

Kara Zor-El : - "Wow! It's really good! Does you humans eat delicious foods everyday? " She asks innocently, well it made sense that she needs time to adapt to this new environment

Tho you must keep her in check, making sure she won't wander off alone and might start using her powers