This is The Burger Family:
They are the mascots of the Canadian version of the A&W fast food chain.
Every member of The Burger Family basically looks the same...
...Except that teen burger has a suspiciously different nose from everyone else in the family.
This is Uncle Burger. Notice anything interesting about Uncle Burger?
He has the SAME NOSE as Teen Burger. Was Mama Burger cheating on Papa Burger with Uncle Burger?
FURTHERMORE: Even if we accept that normal genetics apply here, and Mama and Uncle are siblings, and Teen got his nose from their side of the family...
Then why do Mama and Papa both look like they have the same genetics as Grandpa?!
Are Mama and Papa the ones who are siblings?!