What a good sport!

Gwen Stefani was in desperate need of a manicure yesterday, and so she brought son Kingston along with her to the pampering session. The No Doubt songstress looked perfectly put together in a grey fringe sweater with black jeans, and we seriously don't know how she manages to look impeccable every time she leaves the house!

Her relationship with boyfriend Blake Shelton has never been stronger, and her brood is equally in love with their de-facto stepdad!

"Gwen’s kids are more attached to Blake than ever. They love him, and if Blake and Gwen were to break up at this point, it’d be devastating to the kids. The boys have a lot from Blake, from a new appreciation for country music to all of the wonderful things Blake has shared with them about living in the outdoors. All of Gwen’s kids love spending the holidays in Oklahoma, exploring the countryside and being with Blake and their mom," a source told Celebrity Insider.

"The kids say, ‘I love you,’ to Blake and hug and kiss him whenever they part ways. Even though it is not official, Blake is like a father to those kids. Gwen loves how great Blake is with her boys too, their relationship’s special and it means a lot to her. Blake and the boys really do have a special bond, and they could not imagine not being in each other’s lives," the source added.

Gavin Rossdale really threw away a good thing!