Eddie Cibrian, 44, and Rachel Bilson, 36, were all smiles while on set of their new TV series Take Two.
The two actors grabbed a lunch together and seemed lost in conversation as they walked back on set in Vancouver, Canada.
RadarOnline.com has previously reported how the pair had been flirting on set which would have upset his wife LeAnn Rimes.
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Pretty brunette Bilson is currently single after splitting with her on-again off-again partner of ten years, Hayden Christensen, last September.
Rimes is reportedly upset after her former husband Dean Sheremet announced he was having a baby with his new partner Vanessa Black.
Rachel gave birth to daughter Briar Rose in October 2014, before finally calling it quits with Christensen in 2017.
Bilson and Cibrian bundled up against the cold weather in Canada but they seemed to be delighted with one another's company and oblivious to everyone around them.
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