Blake Shelton and Gwen Stefani may not want to talk about the idea of them dating, but their actions suggest otherwise. During filming for NBC's "The Voice" Monday night, the two were acting like a couple, which included a couple of "cute" moments.

People reports that at one point during Monday's Season 9 live performances, the "Sangria" singer came up from behind Stefani and kissed her on the head. "It was so cute!" a source told People. "She turned around looking semi-shocked that he did that."

The two were also reported to be very close to one another during breaks in filming. However, not all of their flirting happened when cameras were off. 

"The Voice" judges, including Maroon 5's Adam Levine, Pharrell Williams, Shelton and Stefani, all stopped to take a selfie with one another. During the selfie, Shelton, 39, turned and jokingly bit Stefani's shoulder. The picture has since made it's way onto Twitter and can be seen below:

Monday, the 46-year-old No Doubt singer and country star dodged answering questions that they were a couple during an interview on "Today." Levine saved them from having to say anything when he jumped in to answer, saying, "Next question! Distraction. Ask the next question before it gets awkward."

Shelton tweeted about being single Monday afternoon, but quickly clarified his comments, saying, "And before yall start, 'single' means not married... Jesus." When a fan tweeted at "The Voice" judge saying that he and Stefani were a couple, he answered using nothing but a smiley emoji.

According to Hollywood Life, Shelton and Stefani aren't in a rush to jump into anything. However, it's possible marriage could be an option at some point. "They want to enjoy dating and being together in the honeymoon phase as long as it lasts and they will start thinking about getting married down the road. No time soon though. It’s just too early," a source said. Rumors the two were dating started in November.

The "Don't Speak" singer announced her divorce from musician Gavin Rossdale this summer after 13 years of marriage. Shelton also recently went through a divorce. He was married to fellow country singer Miranda Lambert for four years.