Joe Jonas and Sophie Turner Get Goofy at Friend's Malibu Wedding

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Joe Jonas and Sophie Turner
got even cozier at a friend's wedding in Malibu, California, over the weekend.

The singer
and the Game of Thrones actress were adorably goofy while posing for group pics in an old-school photo booth, along with several other revelers.

WATCH: Joe Jonas Sparks Romance Rumors with 'Game of Thrones' Star Sophie Turner

Joe, 27, and Sophie, 20, were beaming as they posed together, one row behind Joe's younger brother, Nick.

Joe and Nick also snapped a pic with some friends while the DNCE singer and his bro celebrated the happy occasion with cigars.

On Sunday, Nick, Joe and Sophie all posed together for a super cute snapshot with another partygoer’s daughter.

"ZaZa was chilling with Sansa Stark when these Jonas Brothers moved in on her convo," the proud papa captioned the cute shot. "But she was like, 'y'all can hang with us.'"

WATCH: Sophie Turner's Selfie With Ryan Gosling Is Epically Adorable

Joe and Sophie sparked romance rumors earlier this month when the two were spotted looking pretty friendly at a Kings of Leon concert before the MTV Europe Music Awards in Rotterdam, Netherlands. Check out the video below to hear more.