Hugh Hefner Dating Twins Kristina And Karissa Shannon

Well, Hef moves fast. Despite losing two of his three girlfriends in the same week, notorious ladies man Hugh Hefner isn't wasting anytime moving on.

Word on the street is Hef has spent recent weeks snuggling up to 19-year-old twins Kristina and Karissa Shannon (pictured above) as her nurses his wounds over his split with Holly Madison and Kendra Wilkinson. In fact, the men's mag mogul says the sisters are itching to be the new Girls Next Door.

They very much want to be girlfriends and now under the present circumstance, they probably will become my girlfriends," Hefner said on Thursday.

And they're not all he has to look forward to.