They've vehemently denied rumors of a romance, but a new report claims that Kaley Cuoco and Johnny Galecki are definitely involved with one another--just not in a committed relationship.

Kaley Cuoco Finally Feeling 'Sexy' Again After Split From Ryan Sweeting?

According to OK! Magazine, the onscreen husband and wife are actually in a "friends-with-benefits situation," because they know they are comfortable with one another, though they don't want to go down the path of a serious relationship again.

"They don't want to be serious again, but they're really comfortable with each other," a source told the magazine. "When Kaley finds someone she'll cut it off. But she'll always keep Johnny in her life."

Kaley Cuoco Not Flaunting New Romance On Instagram

However, it's unclear just how true the rumor may be, as both Galecki and Cuoco have been linked to others since Cuoco's divorce from Ryan Sweeting back in September.

 HAPPY NEW YEAR!!! To an even more incredible 2016. Let's all learn to love a little better.

A photo posted by Johnny Galecki (@sanctionedjohnnygalecki) on Jan 1, 2016 at 1:36am PST

Galecki has been linked to Ariella Nicole, whom he shared photos of on his Instagram page around New Year's, while Cuoco has been rumored to be dating Arrow star Paul Blackthorne, and is allegedly "smitten" with him.

Cuoco and Galecki secretly dated for two years but broke up in 2010. Cuoco married Sweeting on New Year's Eve 2013, after only six months together. The two announced their divorce this fall.