The First Daughters are just like us all!

Sasha and Malia Obama attended their first-ever State Dinner honoring Canadian Prime Minister Justin Trudeau at the White House in Washington, D.C., on Thursday, and the pair shared a precious sister moment.

WATCH: Ryan Reynolds and Blake Lively Stun at White House Reception

As a seemingly star struck Sasha was talking to Deadpool heartthrob Ryan Reynolds, her big sister cheered her on from the receiving line. In the adorable meet-and-greet, Malia can be seen giving Sasha a big thumbs up.

It doesn't get much cuter than that!

Sasha, 14, and Malia, 17, both donned gorgeous Naeem Khan embellished gowns at the formal event. Reynolds' wife, Blake Lively, was also in attendance, looking equally as regal in a silver silk wrap dress by Ralph & Russo.

During his speech, Trudeau gave a shout-out to President Barack Obama and Michelle Obama's two gorgeous girls, saying, "I admire you very much, both of you, for your extraordinary strength and your grace."

President Obama also took the stage to talk, getting a little choked up while addressing how quickly Sasha and Malia have grown up since he was elected into office in 2009.

WATCH: President Barack Obama Gets Choked Up During Malia and Sasha's State Dinner Debut