Crystal Harris was allegedly planning to jilt Hugh Hefner at the altar.

The 25-year-old model - who pulled out of the planned wedding earlier this week, just days before the ceremony was due to take place on Saturday (18.06.11) - reportedly approached various publications asking for a $500,000 media deal to go through with the plan, which would have seen the Playboy boss humiliated while waiting for her.

A source told the New York Post newspaper: "Crystal wanted to ditch Hef at the altar. Her plan was to walk up the aisle and say she couldn't go through with it. The wedding was to be filmed for a reality special, and her refusal to marry him would be a sensation.

"She was looking for a tie-in deal of around $500,000 for the exclusive 'I ditched Hef at the altar' interview. While there was interest, Crystal didn't get an offer anywhere near half a million."

However, insiders insist the aspiring singer's plan not to go through with the wedding was not just financially motivated.

Kristina Shannon - who along with her twin Karissa began dating the media mogul around the same time as Crystal before being dumped 18 months ago so Hugh could have an exclusive relationship - claimed the blonde beauty was bored of "watching classic movies every night", adding the Playboy Mansion can become a "nightmare" if you are unprepared to do as Hugh wishes.

She told the Daily Mirror newspaper: "Living in the Playboy Mansion is like being in a golden prison. It should be every girl's dream

"But if you're not willing to do exactly what Hef says it can become a nightmare."

The July issue of Playboy magazine has already been printed with a lead story of "introducing Mrs Crystal Hefner", depicting the former bride-to-be wearing her ex-fiance's trademark sailor cap, and 85-year-old Hugh has revealed it will now feature a special sticker addition.

He tweeted: "Recent events call for a special sticker on the July cover. Look for it on newsstands.(sic)" before providing a link which showed the magazine with "Runaway Bride in this issue" emblazoned over the image.

However, he seems otherwise unscathed by the event, tweeting about a domino game he was playing last night (15.06.11).

He wrote: "Marston won tonight's domino game with Shera Bechard, Cristal Camden, Ashley Hobbs, Jennifer Pershing, Anna Sophia Berglund & me.(sic)"