Here's the proof: A 2015 Instagram post of Morgan's features a photo of the Centineo siblings. She captioned it with, "Midnight post cause I didn't have service all day, but a very happy (and slightly late) birthday to a really awesome kid. Try not to fuck up your 19th year of life, dips--t. Love you every day." Ah, sibling love.

I think I speak for all Noah Centineo fans when I say: Thank you, Morgan. Although that open casting call didn't give you your big break, if you hadn't dragged along your little brother to that audition, the world wouldn't have the opportunity to enjoy his talents — or his good looks.