Hugh Hefner shockingly proposed to his 24-year-old girlfiriend Crystal Harris over the Christmas holiday, and now the couple is making plans for their big day!

A rep for Playboy told PEOPLE magazine that the famous couple has set their wedding date for June 18, 2011 and, not surprisingly at all, it will be held at the Playboy Mansion!

Hugh Hefner Setes Wedding Date!

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The date and location aren't all the couple has started planning!  Crystal has already started looking for a wedding cake and wedding dresses.  She recently tried on two Romona Keveza gowns in Los Angeles and PEOPLE reports that she seemed interested in strapless pink dress.  Of course, no official choice has been made yet. 

Harris will even be doing a pre-wedding photo shoot for Playboy's June issue!

"It's kind of just a romantic, roaming around the mansion, type thing," Harris explained.

Hugh Hefner Setes Wedding Date!

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Hef's former girlfriend Holly Madison didn't seem too happy when Hef first announced the engagement rumors, so it'll be interesting to see how she reacts to them setting the date so soon!

What do you think of Crystal Harris and Hugh Hefner's wedding plans!?

Photos Courtesy of: Pacific Coast News