Spotted in Vegas: Audrina Patridge and Corey Bohan

She has recently been linked to Star Trek hottie Chris Pine, but has Audrina Patridge already moved on – and turned her attention to an ex-boyfriend?

Fortunately, we are not talking about Justin-Bobby. No, Audrina was spotted with an ex who actually showers and can formulate a complete sentence.

In Las Vegas for her brother Mark's birthday, The Hills star was spotted cuddling up to and kissing her former beau, Australian BMX rider Corey Bohan.

The hot Carl's Jr. spokeswoman, who wore a gold-and-black bikini, and Bohan "were by each other's side all day and they were sneaking kisses," an observer said. "He had his arm around her in their cabana and they definitely seemed together."

Audrina Patridge and Corey Bohan at Tao Beach in Las Vegas.

Later, the two were spotted at Tao Nightclub, and the PDAs continued. In an upstairs VIP box, Audrina spent the night sipping vodka and sitting on her man's lap.

Corey Bohan and Audrina Patridge dated for several months last year before she decided to break it off with him and given another chance to loser J-Bobby.

She recently caused a stir when she hooked up with The Hills co-star Brody Jenner in Hawaii, and had also been linked to Tal Cooperman in the recent past.

Here are a few more pics of Audrina Patridge from the weekend ...

[Photo Credits: TMZ.com]