How many frikkin’ girlfriends is Hugh Hefner going to have now that he’s cleaned house? Check out the latest to join Hef’s harem, Crystal Harris.

So, does this make three or four new girlfriends for the Playboy founder? Or five? We’ve got The Shannon Twins (Karissa and Kristina Shannon), but there’s also been mention of Amy Leigh Andrews and Dasha Astafieva… and now Crystal Harris makes the list.

Crystal Harris, 22, writes on her MySpace page, “I’m a good girl, for the most part.”

Crystal Harris confirms she’s Hugh Hefner’s latest girlfriend though, taking to the E! online message board to say, “Hef gave me permission to fill people in on the new updates as a voice from the mansion.”

She also helps me with straightening out the number of ladies Hef is courting, saying, “there are a couple that we have interest in. … As for now, it is just us three.”

Crystal Harris is a San Diego State University psychology student.