Us Weekly hears…a PDA-happy teen has recently taken his six month romance with a Disney sweetheart to the next level: He introduced her to his family!

"They looked like one big happy family," an onlooker says of the couple's interaction with his half-siblings and dad over Memorial Day Weekend. "The little kids took to [her] straight away and they were all laughing and joking around. They couldn't have been happier."

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