Demi Moore might have just turned 50 years old last month, but she knows how to party like a 20-something.

Moore was spotted kissing her new 26-year-old boyfriend, Vito Schnabel, and partying the night away with Lenny Kravitz at the Art.sy and Chanel BBQ at the Soho Beach House in Miami on Wednesday night, E! News reported. "They are definitely a couple," a source told E! about Moore and Schnabel. "She is definitely more down to party than Vito."

As for her wild ways, Moore was seen dancing up a storm at the swanky Miami hotspot. "She was most ready to party than anyone else in the room," a source told E! News.

However, some reports suggest Moore exhibited some rather bizarre behavior.

The actress and mother of three was seen knocking back Red Bulls and grinding on the dance floor, according to the New York Daily News. Flashbulbs captured her with her legs splayed open and her hair pulled over her face. Despite the fact that Schnabel was reportedly in attendance, Moore clung to Kravitz the whole night.

The party will continue Thursday at the W South Beach club Wall, where Schnabel is set to host the annual Dom Perignon party with Alex Dellal and Stavros Niarchos, according to the New York Post. Moore is expected to be at Schnabel's side.

Moore began dating Schnabel, the art collector son of artist and filmmaker Julian Schnabel, after meeting him at a party thrown by Naomi Campbell in Jodhpur, India, in early November. Schnabel has been linked to older women before, including Elle MacPherson and Liv Tyler.

Meanwhile, Moore and Kutcher have yet to reach a divorce settlement, according to ABC News.

Moore is reportedly delaying divorce proceedings because she is angry about Kutcher's new love. "Demi is totally playing hardball and every time they come close to reaching an agreement she throws up another objection or demand," a source told RadarOnline.com. Adding, "It's a classic case of a woman scorned."

The two separated last November amid allegations of Kutcher's infidelity. The 34-year-old has since begun dating actress Mila Kunis.

Demi Moore parties in Miami at Soho Beach House on Dec. 5.:

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