Sorry, Megan! Brian Austin Green Reveals ‘90210’ Co-Star Hook Ups

Brian Austin Green admitted in a steamy revelation that the Beverly Hills, 90210 hook ups didn't only happen on screen!

On Thursday’s episode of Bravo’s Watch What Happens Live,  a caller asked Green if he had ever had a romantic relationship with Tori Spelling, who played David’s love interest Donna on the teen soap.

Green, 46, initially denied anything happened. But when host Andy Cohen informed him that Spelling had already admitted to the fling, the flood gates opened.

“We hooked up,” Green confirmed. “We did. But we were young and so that’s what young people do.”

Green then immediately admitted he got the most action amongst his co-stars on the show, as Cohen went through a check-list of the other stars.

Green denied hooking up with Shannen Doherty, Jennie Garth and Gabrielle Carteris. However, he did have a relationship with 90210 late-comer Tiffani Thiessen.

“Tiffani and I were dating before we started doing the show,” Green said.

As for why Thiessen isn’t in the current reboot, Green claimed it has to do with timing.

“The reboot was the original cast, and she wasn’t in the original cast,” Green explained. "So that was sort our idea going back was that it was the original group of people that were there at the start.”

He seemed to nervously laugh when Cohen joked that the reason “sounds like an easy way to exclude her.”

As RadarOnline.com readers know, Green has had a rocky marriage with Megan Fox since 2010. After Fox first filed for divorce in April 2015, the Transformers hottie requested a dismissal just this past April.