The stars dined at Craig's restaurant in Los Angeles
This surprising dinner date proves Hollywood is a small world after all.
“Who goes over from her table and sits down with them? Caitlyn Jenner, which means she’s now visiting with the woman who plays her ex-wife,” an onlooker tells PEOPLE.
The celebrity connections don’t end there, though. Before marrying Kris, Caitlyn, 66, was wed to Linda Thompson – who Foster, 66, then married in 1991. (The couple divorced in 1986). So Foster was the stepdad to Caitlyn’s sons Brody and Brandon Jenner, even appearing on the brothers’ short-lived reality show The Princes of Malibu in 2005.
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Blair and Foster are both single: She split from boyfriend Jason Bleick, the father of her 4-year-old son Arthur, in 2012, and he and estranged wife Yolanda Hadid filed for divorce in January.
Their reps did not immediately respond to PEOPLE’s requests for comment.