New York, Dec 15 : Playboy founder Hugh Hefner's sons poked fun at their octogenarian father's dance moves and revealed that they actually get embarrassed watching him shake a leg.

Hefner's sons Marston Hefner and Cooper Hefner revealed in the Playboy magazine that girls freak out on their dad's crazy dancing.

"He is cool out there because his moves are so uncool, he''s a disco inferno from another planet," the New York daily News quoted Marston, as telling Playboy.

"He''s utterly confused, moving his body - the fast shuffles, the crazy elbows - as if he''s not sure what he''s doing. And all these girls on both sides are freaking on him. It should be awkward, but it isn''t for him. It sort of works. Nobody alive can dance like him," Cooper added.

Hefner's sons also stated that they did actually understand as to why and how their father dates so many women at the same time.

"I''m not going to have multiple girlfriends - not at the same time," Marston says. "I can''t imagine that," Marston said

Hefner is currently dating 19-year-old twins Karissa and Kristina Shannon. (ANI)