Gwen Stefani has introduced Blake Shelton to her children.

Gwen Stefani

Gwen Stefani

The 46-year-old singer, who recently started dating her fellow 'The Voice' USA mentor, reportedly made sure he met her and estranged husband Gavin Rossdale's three sons, Kingston, nine, Zuma, seven, and Apollo, 20 months, for the first time in a "very natural and healthy" way.

The 'Used to Love You' hitmaker, who split from Gavin in August after 13 years of marriage, hasn't decided whether she and her new beau, 39, should spend Christmas (25.12.15) together yet.

The source told E! News: "It's very likely they will be together for some parts of it, but Gwen still wants to have the holidays as normal as possible because of her kids. So Gwen may do a more traditional holiday with Gavin when their kids open up the presents, but it's clear to her children they are not with each other in any romantic capacity."

Despite her split from Bush frontman Gavin, 50, the pair, who settled their divorce in October but are waiting for a judge to make it official, are still on good terms.

The source said: "Gavin and Gwen are not on bad terms. she is just ready to move on with her life."

The blonde beauty is "extremely happy" with Blake and friends believe she has "found love again."

The insider added: "It all happened the way it was supposed to happen. Gwen believes timing is everything."