Move over cats, there’s a new viral movement in town. By now you probably have already seen countless videos of the latest craze, the Harlem Shake, but none compare to the one we created on set for a recent Playboy shoot with some of your favorite Playmates. What is it about dancing that makes men’s and women’s hearts race anyway?

According to research, if you can’t get jiggy on the dancefloor, women believe that you’re not good in bed. “The message their dancing sends out is ‘stay away, I’m not fertile’,” said University of Hertfordshire’s Dr. Peter Lovatt. “It’s like an apple that is going brown—you want a fresh green one instead.”

Dr. Lovatt came to this conclusion after studying the connection between dancing, hormones and sexual selection, discovering that women could measure the testosterone levels of their partners by the elegance of their moves.

Let’s just hope the Harlem Shake doesn’t become the next Macarena, because women feel that “dad dancing” is a major turnoff. “It would seem completely unsurprising to me that since middle-aged men have passed their natural reproductive age, and probably have a family already, evolution would act to ensure they are no longer attractive to 18-year-old girls,” Dr. Lovatt said.

So if you’re hoping to bag your own Bunny, polish up your dance moves and hit the town!

Read more Up in Smoke here.

Can you name all of the Playmates in this video? We spotted: Scarlett Keegan, Pilar Lastra, Nikki Leigh, Michelle McLaughlin, Kara Monaco, Hiromi Oshima, Brande Roderick and Tiffany Toth!