Zak Bagans and Holly Madison are officially back together ... rekindling their romance nearly two years after they broke up.
Sources close to the couple tell TMZ ... Zak and Holly are an item again and, actually, had never really fallen out of touch. You'll recall, it was an amicable split back in 2021 -- and our sources say that proved to be true because they've been communicating on and off ever since.
Holly and Zak had known each other for years, but their romance didn't start until after her May 2019 visit to Zak's Haunted Museum in Las Vegas.
We're told Holly travels back and forth between L.A. and Vegas because of her kids, and Zak travels a ton for the filming of his show ... but they still find time to see each other almost every week.
The couple have kept their relationship mostly out of the public eye and have rarely been photographed together. Last month Holly wished Zak a happy birthday on IG with a photo of a clown birthday cake.
We broke the story when the "Ghost Adventures" star and former Playboy model ended their relationship after 2 years of dating.
Both of them have a lot to celebrate these days -- Discovery Channel renewed Holly's show "The Playboy Murders" for a second season and Zak's "Ghost Adventures" series was recently picked up by the network.
Holly famously dated Hugh Hefner, while starring on the reality show "The Girls Next Door." She went on to marry Pasquale Rotella, with whom she had 2 kids, before he filed for divorce in 2018.