Ready for some "Beverly, Hills 90210" behind the scenes from Mrs. Tori Spelling? While taking a lie detector test for her upcoming one-hour Lifetime special, "Tori Spelling: Celebrity Lie Detector," the 42-year-old actress was asked whether she slept with any of her hunky "Beverly Hills, 90210" co-stars.

Host and English television personality Louise Roe asked the mother-of-four, "Did you have sexual relations with any of your co-stars on 'Beverly Hills, 90210'?"

With the lie detector attached, confirming her response was the truth, Spelling replied, "Yes." An emotional-looking Spelling then replied, "I just got chills. I was a young girl."

"You look quite emotional, almost like it was more than sex. It was Brian Austin Green?" Roe asked, to which Spelling replied, "Yes."

"Brian and I were the youngest. We were 16," Spelling recalled, according to Us Weekly. "I remember the time I shook his hand. I had, like, [those feelings]. He teased me. He would tease me a lot. He would pull on my peach fuzz and he'd be like, 'Oh My Gosh. You're like a little lamb chop. You're like my Chewbacca.'"

"I was like 'Great! There is all these extras around me, hot girls,'" Spelling continued. "And I was just really hoping he likes me."

Here is some cultural relevance: Spelling and Green played lovebirds Donna Martin and David Silver from 1990 to 2000. There have been rumors that the two were dating off-screen. Green is currently separated from wife Megan Fox after five years of marriage.

"Tori Spelling: Celebrity Lie Detector" airs Saturday, Oct. 3 at 10 p.m. on Lifetime. The Lifetime special will premiere after "The Unauthorized Beverly Hills, 90210 Story."

So, were Spelling and Green the only two cast members knocking boots? Apparently not. After a long hesitation, Spelling admitted to sleeping with another co-star but refused to admit who the lucky man was. Roe managed to eliminate Ian Ziering, which narrows it down to Jason Priestley and Luke Perry.

"Half my friends don't even know this..." she said.