Julianne Hough and Kenny Wormald
Stephen Lovekin/Getty Images
10/14/2011 at 03:00 PM EDT
There's no denying that Julianne Hough
and her Footloose
costar Kenny Wormald have chemistry.
But the dancing duo
are nothing more than friends.
During the same week that they partied together
in N.Y.C. and participated in a touchy-feely performance
on Dancing with the Stars
, reports surfaced that the talented twosome also made out.
"It's all completely untrue," Hough's publicist tells PEOPLE of the rumors.
Hough, 23, who has been in a relationship with Ryan Seacrest
since last year, has gushed about
her beau on numerous occasions. Calling him "really romantic," she has said he's a "phenomenal" boyfriend.
The lovebirds were spotted cutting footloose just last week at the W Los Angeles-Westwood for the film's official after party.