Karina Smirnoff doubles up on Marios: Is she only 'Dancing With the Stars'?

Does "Dancing With the Stars" hottie Karina Smirnoff have two partners?

The New York Post reports that the buff brunet is not just dating her former dance partner, Mario Lopez, she's also been seen kissing her current partner, R&B singer Mario, at the Four Seasons in Los Angeles.

According to their source: "They were making out by the valet with their hands all over each other, and he was whispering in her ear. It was around midnight, so there weren't many people around."

The Post sez reps for the show and Lopez did not return calls. But Karina's rep told Us Weekly that the lip-locking "did not happen" and that Katrina and Mario (her current dance partner) have a "professional working relationship."

Hey, maybe they were just practicing a new dance routine. The Tongue Twist? The Make-Out Mambo? The Horizontal Waltz? 

"We have a completely professional relationship," Katrina said in Us Weekly. "I have a lot of respect for Mario. He is a great person."

OK, I'll bite.

But click here to see Mario's rave review of his dancing darling ("All I could see was legs!"). When asked about the hook-ups on "DWTS," he stammers and points out that, uh, he's the only single guy on the show and that he thinks all the other male contestants are married.

Yeah, like that's gonna stop 'em.

What do you think? My sources say there are also more contestants getting it on with their dancing partners. More will be revealed soon ...

And from a viewer's perspective, I think a little flirtation will improve their dance moves. Nothing like some sexual chemistry to heat up the dance floor! 

Photos: WireImage