Dancing With The Stars hoffers Maksim Chmerkovskiy and Karina Smirnoff have sparked rumors that they are doing the bedroom two-step behind-the-scenes of the hit ABC ballroom series after the Ukraine natives were snapped in a steamy liplock while heating up the dance floor at the ONE Sunset club in Los Angeles on September 29.

“They were getting closer and closer until they were grinding on each other,” a spywitness dished in the October 13 edition of Star Magazine. “They were dripping with sweat; it was incredibly hot and sexy.”