Crystal Harris, Playboy owner Hugh Hefner’s number one girlfriend, has cancelled plans for the wedding. Harris, 25, is an aspiring singer and actress who has modeled and starred in a couple of reality shows. She became engaged to Hugh Hefner in 2010, and was planning to walk down the aisle with him, until she cancelled five days before the planned wedding, because she wants to focus on her career. Hefner, for his part, refused to sign a pre-nuptial agreement because he claims to actually care for Crystal. The millionaire entrepreneur and magazine publisher, is now coming to terms with the split from his girlfriend of two years. Unfortunately for them, the new Playboy magazine cover featuring a scantily clad Harris with a proclamation of her being the new ‘Mrs. Hefner’ has already gone into publication. Due to this, Hefner has now decided to add a sticker to each magazine claiming Crystal to be the ‘Runaway Bride’. This is not the first time Hugh Hefner has been married. He has been married twice before, and has four children from the marriages. His oldest daughter, Christie Hefner, was Vice President of the Playboy company until her resignation in 2009. Hefner continues to reside in the Playboy Mansion.