Tough day at work! Katie Holmes raised the already-hot New York City temperatures on Friday, May 31 while filming a steamy scene with her Mania Days co-star, Luke Kirby. 

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Going shirtless and showing off a light blue lacy bra, Holmes, 34, straddled Kirby, 34, as he took her in a passionate embrace. For another scene, the pair had a hot and heavy make out session, Holmes clutching on to Kirby's T-shirt. 

PHOTOS: Katie's cutest moments with Suri 

In the film, the pair portray two manic depressives who meet in a psychiatric hospital and begin a romance together. 

Holmes, mom to Suri, 7, has sure been having fun on the NYC set. On May 21, she was photographed giggling and running through a water fountain with Kirby.

PHOTOS: How Katie transformed during marriage to Tom Cruise

She and Tom Cruise, 50, ended their marriage in June 2012, with their divorce finalized in July 2012. 

This article originally appeared on Katie Holmes Kisses, Straddles Luke Kirby on Mania Days Set