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There’s nothing like the love shared between a sister and brother. Even if they’re only TV sister and brother and not actually real life siblings. Ariel Winter and Nolan Gould have grown up together on the set of Modern Family, and they’re so close they do things like vacay in the Bahamas together. They’re basically besties, and it’s adorable.

Winter posted the sweetest Instagram message to her TV bro on his 18th birthday, sharing some hilarious and heartwarming memories from their eight years together on set.

Of course, the message is also accompanied by a super cute picture of the sibs.

Nerf guns and pranking whoever Sharon is?? They really sound like they could be Phil Dunphy’s kids in real life.

Of course, the third Dunphy sibling wasn’t going to be left out, either!

Sarah Hyland, who plays the oldest sibling of the wacky family, also added her happy birthday greetings to her TV bro.

We love their love for each other! Gould has two fantastic older sisters looking out for him always — doesn’t even matter if they’re not blood related. Dunphy siblings for life!