Gwen Stefani and her The Voice co-coach, Blake Shelton, love to talk up a storm on the set of their successful show. However, one topic is reportedly off limits — their respective divorces from Gavin Rossdale and Miranda Lambert.

According to Hollywood life, it may be that the two are getting cosy together in the wake of heartbreak.

The website says Blake requires a drama-free environment on The Voice set, which translates to no talk of failed marriages.

Gwen Stefani shuts down those Blake Shelton romance rumors http://t.co/2hIkc7Qe0K pic.twitter.com/FwdoUJlxWp

— People magazine (@people) October 19, 2015

“Blake doesn’t really bring his divorce talk to her; he tries to make the day on set fun by telling jokes and being a goofball,” a source reportedly told HollywoodLife. “It’s more important for him that everyone is in a good mood. No drama!

“Blake loves talking to Gwen and talking to her about music and everything else, except divorce talk,” the source continued. “Blake doesn’t like talking about divorce because it gets him to think about his divorce, and he wants to move forward instead of backwards.”

Needless to say, the two megastars surely have much they could talk about and it would be natural to rebound with each other, but it’s more likely that Gwen and Blake are just enjoying their time on The Voice and keeping things in the friend zone.

Gwen Stefani and Blake Shelton may be more than just friends (via @gossipgirl): http://t.co/WuZ7cDpUVe pic.twitter.com/I9qMSOYJIS

— POPSUGAR (@POPSUGAR) October 9, 2015

The Voice crew appeared together on The Tonight Show with Jimmy Fallon on October 26 to play a rousing round of “Spin the Microphone.”

In the game, Gwen was chosen to sing Hotline Bling and proceeded to perform the song “up close and personal with Blake.”

It’s true there was palpable chemistry going on between Gwen Stefani and Blake Shelton, but chemistry doesn’t necessarily translate into relationship.