From WENN.com

The 25-year-old model broke Hefner's heart last June (11) when she walked out on him just four days before they were due to exchange vows.

The publishing mogul, 86, welcomed Harris back into the Playboy Mansion this week (begs28May12) for ""dinner"" and ""games"", but he stopped short of revealing whether they had reunited romantically.

Now the blonde beauty has confirmed they are back together.

Taking to her Twitter.com page, Harris writes, ""Yes, Hugh Hefner and I are back together. Yes I am his # (number) 1 girl again. Yes we are happy. Hope that clears up any confusion!""