Derek Hough Gives Sister Julianne and Ryan Seacrest his "Seal of Approval"

Ryan Seacrest doesn't need to worry about impressing his girlfriend Julianne Hough's family — her brother Derek Hough is a big fan of the American Idol host.

Dancing with the Stars pro Derek, who is tipped to win the competition with partner Jennifer Grey, shared his feelings about Julianne and Ryan on Access Hollywood.

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“You know what? She seems very happy,” Derek said about his sibling, who's currently filming the Footloose reboot. “As far as I’m concerned, he gets the brother’s seal of approval.”

So how would he describe their relationship? “As of now! They seem very happy,” said Derek.