Well, turns out Dewan and Keibler are pals. "They've been friends for a long time," a source tells E! News. "Jenna and Stacy are very good friends."
They spent this year's Cinco de Mayo together at Mixology 101/Planet Dailies and Pink Taco in Los Angeles. "Girls night!! Margaritas w/ @StacyKeibler is happening right now," Dewan tweeted at the time. "sombreros and all #cincodemayo #mexicanfood4ever."
Earlier in the year, they sat side by side in the front row at the Marchesa show during New York's Fashion Week.
And let's not forget whom Clooney and Tatum have in common—director Steven Soderbergh. Both men have separately starred in Soderbergh flicks, the most recent being Tatum's male stripper hit, Magic Mike.
Keibler posted a pic on Instagram of her, Tatum and Dewan driving in a car with the message, "Magic Mike storms Italy :)"
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