AceShowbiz -

While Blake Shelton and Gwen Stefani remain coy about their relationship in every interview, they don't seem to be shy to show it on social media. The "Used to Love You" singer took to Twitter on December 7 to share a snap which was supposedly a group selfie of "The Voice" coaches but it turned to be a snap showing the couple packing on the PDA.

The snap, which was taken during a commercial break of the Monday's live show, showed Gwen and Blake alongside their fellow coaches Adam Levine and Pharrell Williams. Though it featured Adam and Pharrell, the focus of the camera was on the cute couple. In the said snap, Blake supposedly bit Gwen's shoulder as she was smiling at the camera. Meanwhile, the others made funny faces. "@NBCTheVoice !!! @adamlevine @Pharrell @blakeshelton gx," read the caption.

@NBCTheVoice !!! @adamlevine @Pharrell @blakeshelton gx pic.twitter.com/KaQdigBRwa

— Gwen Stefani (@gwenstefani) December 8, 2015

An eyewitness told PEOPLE that the pair were inseparable on the show. At one point, "Blake came up to Gwen from behind and kissed her on the head. It was so cute!" said the eyewitness. "She turned around looking semi-shocked that he did that."

During another commercial break, Blake brought over two mature women who wanted to take a picture with him. The "Sangria" singer brought them to take a picture with him next to his coach's chair. "Adam then grabbed him and hugged him from behind in a spoon position and Blake looked back thinking it was Gwen," a source told HollywoodLife.com. "When he realized it wasn't her, he burst out in laughter and ran over to Gwen's chair to tell her about it."

Both Blake and Gwen went through their respective divorces earlier this year. In early November, reps for Blake and Gwen confirmed that the two were dating. However, both of them always tried to avoid explaining their romance when news outlets asked them.