Blake Shelton continuously plays the father role for Gwen Stefani's kids despite their inability to get married yet. The couple accompanied the son, Kingston, of the former No Doubt's frontwoman to his football tryout, and they looked like co-parents.

Kingston, Gwen Stefani's son to her former husband Gavin Rossdale, had a football tryout, and thanks to his mom and her boyfriend, he had a family watching him. His mother and the 43-year-old television personality were patiently waiting on the bleachers as they were watching his game while packing on major PDA.

At one point, Gwen Stefani was seen wrapping her arm around her man. She was even spotted fixing his hair while they were seating, per Daily Mail Online.

Blake Shelton and Gwen Stefani's outing comes after People reported their inability to get married. A source told the publication that Miranda Lambert's ex-husband is very serious about his fellow The Voice judge right from the star and even thinking about proposing.

However, Gwen Stefani is practicing Roman Catholic and wanting to have a church wedding with Blake Shelton. According to Radar Online, the said religion doesn't allow any person to get married again unless their previous marriage is already annulled.

Gwen Stefani was married to Gavin Rossdale in 2002, although they were already divorced in 2016. They shared three sons, Kingston, Apollo, and Zuma.

A source told the outlet that Blake Shelton already converted to Roman Catholic so that he could tie the knot with Gwen Stefani. However, his girlfriend still has an annulment issue that she needs to fix before they can plan everything out.

Anyhow, the couple's friend revealed that the two already found "the one" that they are looking for in each other. Hence, they are both "very serious" about their relationship. The same pal also added that their romance is "definitely headed toward marriage."

Blake Shelton reportedly has a good relationship with Gwen Stefani's family. He even becomes like a "second father figure" to Kingston, Zuma, and Apollo. The kids and their future step-dad all have "very like-minded" and even comfortable with each other.

Gwen Stefani, on the other hand, brings sparkle to Blake Shelton's life. Her love for her boyfriend can be evidently seen and felt. She is even embraced by everyone close to Blake.

Gwen Stefani was married to the Bush vocalist, Gavin Rossdale, for 13 years, while Blake Shelton was once wedded to another country singer, Miranda Lambert, from 2011 to 2015. He was also married to Kaynette Williams from 2003 to 2006.