Blake Shelton and Gwen Stefani might not have publicly accepted or denied their alleged romance, but a source on “The Voice” sets said that they both are “very flirty both on and off set,” Radar Online reported Monday. 

“At first they were just bonding over the fact that they were both going through divorces at the same time,” the source told Radar Online. “That turned into an even closer friendship between them,” the insider added.

The source reportedly explained how Shelton and Stefani, who are both recently-divorced, got together and why their alleged romance is making headlines. “Blake and Gwen have been leaving the set together at the end of the workday on several occasions and he invited her out to the bar with him after taping too. Plus, the way that they interact both on-camera and off-camera is undeniably flirty,” the source told the entertainment website. “Viewers will be able to see this from a mile away and it is going to make for some great TV.”

Despite this, another source told Gossip Cop that there was nothing “heating up” between the alleged couple. Gossip Cop had previously reported that the dating rumors about the couple were “completely untrue.”