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The Miami weather wasn't the only thing heating up in South Beach this week.

Miley Cyrus and new boyfriend Patrick Schwarzenegger have been spotted all over the town over the last several days packing on the PDA and checking out a few parties.

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On Dec. 5, though, the couple went a much tamer route, cuddling, kissing and sipping drinks at an outdoor lunch.

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In Miami for Art Basel, an art event, the couple sat close, Patrick's arm often around his girl, as they basked in the Miami heat, constantly kissing. At one point Miley "snuggled into her beau's chest for a little nap," the Daily Mail reported.

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A source close to the couple recently told E! News that this may be the real deal. "This is more than just a fling. They look like they are falling in love with one another."

Perhaps Patrick envisioned this coupling years ago. In 2011, Patrick told Details Magazine his "girls for the future" included Selena Gomez and Kendall Jenner, but he finally said, "My eye, though, is set on Miley."