Team Ashton vs. Team Audrina?

For those of you who have yet to experience a Hollywood party, it certainly is a source of amusement when you combine A-list talent with today's ever-popular reality stars.

On Tuesday night, West Hollywood's Dolce Restaurant came alive as hundreds flocked to celebrate the fifth anniversary of restaurant and club entrepreneurs, The Dolce Group.

The group's celeb investor Ashton Kutcher (sans wife Demi Moore) hosted the star-studded soiree smoking and sipping PAMA cocktails as he spent the night hanging with his fellow friends in the fame world, including Matthew Perry and Wilder Valderrama.

Interestingly, today's top reality starlets, Audrina Patridge and "Keeping Up With the Kardashians" stars Khloe and Robert Kardashian, hung out together in a totally different room, emphasizing the Tinseltown division between true talent and, er, luck?!

But ever since those topless snaps of "The Hills" hottie Patridge were released earlier this year, the 23-year-old has been playing mum with the media. Audrina chose to spend the night hidden in the corner canoodling with her on-again/off-again beau Justin Bobby and refused interviews. But every time a camera came close, those two suddenly couldn't keep their hands off each other.

"They aren't really back together," a Patridge pal told Pop Tarts. "They just act up for the cameras. It's funny." Hilarious.