Jason Priestley is not happy that former co-star Tori Spelling is spilling the beans on their “90210”-era sexual encounters.

But he's not denying the two did the deed, either.

When asked by a follower on Twitter if Spelling’s claim the two had sex back in the day was true or false, Priestley replied:

“I'm not getting into this... It's nobody's business... Either way...”

He then tweeted a second time, clarifying his stance on the subject:

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Spelling, 42, made the claim that she slept with Priestley, 46, on Lifetime’s new show "Celebrity Lie Detector."

After admitting last week that she had a long relationship with fellow cast member Brian Austin Green, who recently split from Megan Fox, Spelling was pressed by the show’s host Louise Roe if “there anyone else from the original cast that you had sex with?”

Spelling said hadn’t slept with Ian Ziering or Luke Perry, but claimed she had in fact slept with Priestley.

"It was a summer fling; it was off-set," she said. "It was our version of a summer romance. The ‘90210’ version. And that was it, and we stayed great friends."

"Oh my God, I'm gonna get in so much trouble for this," she added.

Cast member Shannen Doherty may not be too happy with Spelling, either, as Spelling recounted the actress’ diva-like behavior and a "fist fight" with Jennie Garth that the male cast members had to break up.

After the cast couldn’t take Doherty’s behavior anymore, Spelling said they united to have her fired, something she now regrets. Kind of.

"I felt like I was a part of something, a movement, that cost someone their livelihood," Spelling said. "Was she a horrible person? No. She was one of the best friends I ever had."