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Patrick Schwarzenegger, Miley Cyrus

Michael Buckner/Getty Images for Teen Vogue, Larry Busacca/Getty Images for NARAS

Miley Cyrus and Patrick Schwarzenegger enjoyed a date night out with friends this past weekend.

The twosome, who've had everyone wondering if they are more than just friends, hit up Bagatelle restaurant in West Hollywood Friday night where they continued to fuel the romance rumor mill.

According to a source, the 21-year-old singer and the hunky star were with around 15 friends, mostly pals of Patrick, for a birthday party "They were definitely affectionate, holding hands, taking photos together and clearly were into each other all night," the insider dished of the maybe-couple. "They stayed for about two hours before heading out with the group. Miley was drinking water, and the group had ordered some champagne. She was wearing a red floor-length dress."

Patrick and some of his friends took to social media to share a few moments throughout the night. "Looking forward to my boy @ThorellP new #frenchfridays @BagatelleLA congrats bud, gonna be good time. #parisatbagatelle," Patrick tweeted before the dinner.

Another male friend shared a selfie with Miley, who showed off lots of cleavage with her plunging getup. And Bagatelle tweeted, "@MileyCyrus is in the house tonight and Bagatelle LA is going nuts!" Sounds like quite a night out!

Just last week, a source told E! News that while Miley and Patrick are not an official couple just yet, they're enjoying dating one another and taking things slow. "They don't have a title," our insider explained. "They are having so much fun together that friends don't know at certain times if they are a couple or best friends."

Guess only time will tell.

—Reporting by Ruth O'Neill