There’s zero doubt that Gwen Stefani is head over heels with her country singer boyfriend, Blake Shelton, and it turns out that one of the many reasons why is the fact that he is so involved in her three sons’ lives and whole raising process! One insider report claims to know that Blake, despite not having any biological kids of his own, is a complete ‘natural’ with Gwen’s boys! However, the source tells HollywoodLife that this was not always the case.