Eighteen months ago she called off her wedding shortly before she was due to walk down the aisle in front of 300 guests.

Now Crystal Harris has finally become Mrs Hefner, saying her vows to Hugh in a much smaller ceremony.

The blonde spent New Year’s Eve tweeting her excitement about the impending nuptials, including an image of a  flower covered bower in front of just two dozen chairs.

Hugfh shared a picture of him and his bride, tweeting: ‘Crystal & I married on New Year’s Eve in the Mansion with Keith as my Best Man. Love that girl!’

Hugh shared a picture of him and his bride, tweeting: ‘Crystal & I married on New Year’s Eve in the Mansion with Keith as my Best Man. Love that girl!’

The model, 26, had earlier written: ‘Today is the day I become Mrs. Hugh Hefner. Feeling very happy, lucky, and blessed.’

She has changed her name on the social networking site to Crystal Hefner.

The blonde was dubbed a ‘runaway bride’ by the 86-year-old mogul after she called off their engagement just days before their wedding in June 2011.

The scene: The bride shared no photos of the wedding itself, preferring instead to keep it privateAfter their split, she revealed she had only been intimate with him once – and very briefly.

She admitted sex with the octogenarian lasted ‘like two seconds’, adding: ‘Then I was just over it. I was like, ‘Ahhh.’ I was over it.

‘I just like, walked away. I’m not turned on by Hef, sorry.’

She continued: ‘He doesn’t really take off his clothes. I’ve never seen Hef naked.’

Despite her comments, the pair reconciled in May this year and will marry in a lavish Los Angeles ceremony.

‘Blessed’: The bride-to-be tweeted this message on Monday morning ahead of her nuptialsCrystal celebrated her upcoming nuptials with a Disney themed bridal shower on December 19.

Her best friend Ashley Matthau threw her a bachelorette party at lingerie store Femme Fatale in Studio City, California.

She told Us Weekly magazine: ‘We really love Disney. We are huge fans. We go to Disneyland together a lot. My favourite movie is The Little Mermaid, so she got me an Ariel-themed cake.

‘I was deciding what kind of shower I wanted, and I thought I didn’t really want a lingerie shower, since I have more than enough lingerie.’

Wedding bells: The pair will exchange vows at the Playboy mansion in LA

Hugh recently said he wants to stay with Crystal until he dies and insisted he doesn’t care about the 60-year age difference between them.

He tweeted: ‘The dramatic age difference between difference & Crystal & me really doesn’t matter. Whatever time I have left, we want to spend together.’

Hugh has been married twice previously, to Mildred Williams from 1949 to 1959 and Kimberley Conrad from 1989 to 2010.

Flashback: Playboy released ‘Runaway Bride’ stickers for the July 2011 edition which introduced Harris as Mrs Crystal Hefner. She had called off her engagement to Hugh just days before the wedding – and after the magazine had gone to print- Daily Mail UK