Katie Holmes and Luke Kirby film a passionate love scene for their movie, "Mania Days" on the Lower East Side of NYC. Credit: Allan Bregg / Splash News

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. 

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. 

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.

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