United Kingdom, Sept. 18 -- Christine Taylor and Ben Stiller both thought their relationship was a "rebound romance".

The 55-year-old former Brady Bunch Movie star first met her Zoolander co-star in 1999 when they were working on an unaired TV pilot called Heat Vision and Jack.

She told the We're Still Here, Babes podcast: "That became the beginning of an entirely new chapter of my life, because Ben and I hit it off on the set.

"We went on a date towards the end of the shoot, and then just kind of went on this whirlwind romance.

"We both thought [it] was our sort of rebound romance, 'cause I had just broken up with someone, and he was just getting out of something."

Christine explained they were both keeping things on the "down-low" ...