Hugh Hefner is considering getting married.

The 83-year-old Playboy founder admits he is happier than ever with 23-year-old girlfriend Crystal Harris and hasn't ruled out making their union official.

It seems as if the media mogul - who has been married three times - has had change of heart as he previously vowed never to tie the knot again.

He said recently: "I haven't had a lot of luck with marriage. I don't have a good track record and I don't want to screw this one up."

Hugh first started dating Crystal a year-and-a-half ago, while he was still in a relationship with 20-year-old twins Kristina and Karissa Shannon.

However, in January he confirmed his romance with Crystal was "getting more serious" and asked his other lovers to move out of the Playboy Mansion into the neighbouring Playmate House.

Speaking about suggesting the move to them, Hugh said: "When they thought about it, they thought it was a good idea. They will now be friends, but they won't be defined as the girlfriends.

"They've been hanging out with a lot of the other Playmates and they see these girls travelling across the country to do promotion. They would like to be doing that, too."