Audrina: 'I Don't Know If I Can Stand DWTS' Filed under ( Audrina Patridge, Bristol Palin, Dancing With The Stars, Kyle Massey, Tony Dovolani )

She's endured more than her share of catfights on The Hills, but can Audrina Patridge take the heat on Dancing with the Stars?

"My legs are so sore!" Patridge told Us Magazine at Wednesday's launch of Halo Reach at the Rob Dyrdek Fantasy Factory in L.A. The Hills alum, 25, has been paired with Tony Dovolani for the show's eleventh season, premiering Sept. 20.

The reality star told Us she still has trouble "going through the entire routine without stopping because you run out of breath. It's like, 'I don't know if I can stand this for fifteen more hours!'"

"I'm really hard on myself," Patridge added. "I'd rather just keep going and going and going instead of taking a break."

The hard-core training does have its benefits, though: "my calves and my legs are really getting tighter," the already-fit star boasted.

Her partner Dovolani was also on hand for the Halo Event, and had praise for his newest celeb partner.

"Right now she's her own competition -- she pushes herself to the end," Dovolani told Us of Patridge.

Another DWTS competitor in attendance: Kyle Massey (whose pro partner is Lacey Schwimmer), who told Us that things are chummy so far among the dancers, which also include Brandy, Bristol Palin, David Hasselhoff and others.

"Everyone is super cool. Everyone just kicks it," Massey said. "Everyone is in there just chitchatting."

What about single mom Bristol Palin? "She is chill!" Massey said. "She is cool."

Credit: Us Magazine