Jason Priestley has hit out after Tori Spelling claimed that they slept together while filming 'Beverly Hills 90210'.

The 42-year-old actress admitted to romances with three of her male co-stars on the hit 1990s teen drama, revealing for the first time that she had slept with Jason, 46, and he is not happy about it.

When a fan asked about it on Twitter, Jason responded: ''I'm not getting into this... It's nobody's business... Either way...''

His angry response came after Tori revealed all on 'Tori Spelling: Celebrity Lie Detector', admitting to a ''summer fling'' with Jason.

She said: ''Half my friends don't even know this.

''It was a summer fling, it was off set, it was our version of, like, a summer romance, the '90210' version and that was it.

''You know, we stayed great friends for the rest of the run, and beyond that, but yeah, we had that one summer fling.''

Tori also publicly dated co-star Brian Austin Green - who is the estranged husband of Megan Fox - during the show's run and admitted to a cheeky kiss with Luke Perry on her 18th birthday while out celebrating with the cast.

Tori, now a mother of four with husband Dean McDermott, said: ''It was like for a second, but it was like for a young girl that was everything. But no, we never had sex.''