There are many truths to the world that are just too shocking for the mind of a child to handle. Your parents are Santa Clause, professional wrestling is fake, and possibly the most difficult -- not even cute babies remain babies forever. This little girl named Sadie just can't handle that kind of truth bombshell. 

Source: alexmiller

Sadie better enjoy those chubby little cheeks and that toothless, drooling smile while she can. Because one day, baby bro is going to be an annoying know-it-all teenager. THE. WORST.