Hugh Hefner and Playboy Playmate Crystal Harris dating again

Reunited and it feels so good.

The one-time couple of Playmate Crystal Harris, 26, and Playboy founder Hugh Hefner, 86, are dating again, this according to Harris herself. She broke the news on Twitter that she's back with Hef and living in the Playboy Mansion.

"Yes Hugh Hefner and I are back together," she writes. "Yes I am his #1 girl again. Yes we are happy."

The May-December couple was scheduled to get married in June 2011. But after what was called a "change of heart" on Harris' part, the wedding was nixed and Harris split.

But the couple apparently can't stay apart.

"Happy to be back home at the Playboy Mansion with Hugh Hefner and our puppy Charlie. I missed all the love and laughs," she adds.

The octogenarian agrees with his lady love. Hefner shares, "Getting back together with Crystal Harris shouldn't be a big surprise, since I have a history of remaining close to former girlfriends."