[WATCH] ‘Hunger Games: Mockingjay’ Jennifer Lawrence Ex Boyfriend Nicholas Hoult Does Ice Bucket Challenge With ‘Equals’ Co-Star Kristen Stewart, Are They Dating?

"Hunger Games: Mockingjay" actress and her ex boyfriend Nicholas Hoult have reportedly split over his "Equals" co-star Kristen Stewart. Nicholas Hoult and Kristen Stewart filmed themselves doing the ALS Ice Bucket Challenge with friend Scott Fahrendorf - watch the video below! Does this video suggest that Nicholas and Kristen are growing closer than ever, much to Jennifer Lawrence's dismay?

Kristen Stewart, 24, says to the camera in the video: "Here's to the fight against ALS. Richard, I love you. Hathaway, get this - this is a f***ing real challenge."

Jennifer Lawrence's ex boyfriend Nicholas Hoult, Kristen Stewart, and Fahrendorf stick their heads in the buckets for a couple seconds before standing and dumping the water over themselves.

Then Nicholas and Fahrendorf grab another much larger container of icy water and dunk it over the "Equals" actress' head.

Kristen then nominates Jacki Weaver and Brie Larson, while Nicholas Hoult, also 24, nominates Craig Roberts, Colin Firth, and Joe Dempsie.

She also revealed that they know how to reuse and recycle: "In good faith you must believe that all of this was done with dirty bath water. Please be considerate of California water conservation."

Watch the video here:

This giggly, flirty display of affection seems to hint that Nicholas and Kristen have become very good friend, and may even back up rumors that the co-stars are dating following a shocking break up from "Hunger Games: Mockingjay" actress Jennifer Lawrence.

As we previously reported, Nicholas and Jennifer Lawrence haven't been seen together since April, when they were spotted in London.

Even the "Equals" director couldn't ignore the sparks between Kristen and Nicholas.

"It became evident in my head that Nick and Kristen would have great chemistry," director Drake Doremus said.

From the start of the making of "Equals," Jen was nervous about her boyfriend working with Kristen Stewart, according to ShowbizSpy.com.

"This is making Jennifer uneasy, to say the least," a close source told the website.

"She doesn't want to think the worst of Kristen, but her reputation precedes her."

Many "Twilight" fans will remember the scandal when Kristen cheated on her long-time boyfriend and "Twilight" co-star Robert Pattinson with their married (and much older) director, Rupert Sanders.

"It all worked out a little too conveniently for Jennifer not to be suspicious. Considering Kristen's history with British men, she's the last person Jennifer wants to see kissing her boyfriend on the set.

"Although Jennifer is busy with her super-hot career, she's determined to make time to visit the 'Equals' set and keep a watch over Nick. She doesn't want to see her romance sabotaged."

Perhaps sabotaged it was.