Former "Beverly Hills, 90210" alums Jennie Garth and Shannen Doherty are returning to their old stomping grounds in The CW's new "90210." But was their reunion friendly, or full of sparks?

Usmagazine.com reports that Jennie told TV Guide that she was a bit trepidatious to work with Shannen again, given their highly publicized tempestuous past.

"I was a little nervous because I hadn't seen or talked to her in 14 years," says Jennie. "Everyone was making it out to be such a big deal that I think we both fell prey to having that affect us."

But Jennie says that when the pair began to do what they were there to do -- act together -- the chemistry fell back into place. "Once we were working, it felt like a good fit," she explains.

Jennie's co-star Ryan Eggold, who plays her new beau on The CW series, recalls "everybody was on pins and needles and sort of waiting to see how they'd react. They started off kind of tentative, but by the time we were five takes in, they were giggling and seemed to be reconnecting."

As for Tori Spelling, who was initially going to return to the series but recently bowed out reportedly due to a money decision, Jennie says she is encouraging fans to launch a "Bring Back Donna Martin" campaign.

"I know Shannen probably doesn't share the feelings that I have for Tori, but I love Tori like my sister," she exclaims, fighting back tears.