Gwen Stefani is denying her relationship with Blake Shelton because she does not want to give her kids the “wrong idea," a source told Hollywood Life. The news comes just a day after Stefani denied dating Miranda Lambert’s ex-husband.

“It may seem like Gwen is back tracking by saying she never said she was in a relationship, but it’s just semantics. She has explained to her kids that she’s dating Blake. The word relationship sounds way too serious and she doesn’t want to freak out her boys. It would be a big deal for mommy to be in a new relationship,” the source told Hollywood Life.

Stefani has three children -- 9-year-old Kingston, 6-year-old Zuma and 1-year-old Apollo -- with her ex-husband, Gavin Rossdale.

“The term ‘dating’ has a more loose, fun definition. It’s not so serious. She doesn’t want her kids to get the wrong idea. She’s just trying to protect them like any parent would,” the source reportedly added. “Plus she doesn’t want her kids to think that Blake is somehow replacing daddy. To them, Blake is a good friend that she is dating, which means spending time with him and doing fun things together.”

According to TMZ, on Tuesday, the former “No Doubt” singer was live on the "Frankie and Geena Morning Show" on San Diego's Channel 93.3 when she was asked about her "new relationship." She reportedly said that she was not dating anyone, adding that she only came to know about the rumors when her children heard it.

The “Sangria” singer’s representative confirmed last week that Stefani and Shelton were dating. The two sparked romance rumors after their closeness was noticed on “The Voice” sets.

Meanwhile, the 39-year-old country singer , who is comfortable with Stefani’s children, invited them to the 29th Annual Kids' Choice Awards. Shelton is scheduled to host the event in March.

If she wants to bring the boys out there, that's awesome!" Shelton told ET Online ahead of Tuesday night's live episode of "The Voice."

According to reports, Lambert was upset after hearing about Shelton and Stefani’s romance. However, the “Over You” singer has not publicly addressed her ex-husband’s relationship.