When Blake Shelton and Gwen Stefani met on the sets of "The Voice," both were going through tough times in their personal lives but love happened between them and now they are inseparable. The good part is that love also blossomed between Shelton and Stefani's three sons Kingston, Zuma and Apollo who she shares with her ex-husband Gavin Rossdale.

Blake Shelton and Gwen Stefani are stronger than ever in their relationship as the country singer has developed a strong bond with her sons Kingston, Zuma and Apollo. According to E! News, the three boys recently got identical tattoos on their forearms, copying the one Shelton sports on the same spot. Stefani also shared a picture of the four showing off their similar forearm tattoos which they got on an Oklahoma trip and thus, it goes without saying that the country singer is really close to her sons.

However, credit must be given to Blake Shelton for making it possible as it is not easy to get into the life of one's girlfriend's children and find acceptance. The 40-year-old-singer has made genuine efforts to befriend the three children and his sweet gestures have paid off. He has always tried to gel with them by taking trips, flying on a helicopter for Apollo's birthday and many more activities.

In fact, Blake Shelton and Gwen Stefani celebrated Christmas with Kingston, Zuma and Apollo and the 47-year-old-singer telecasted the fun time of Shelton and her boys live on Snapchat. The three were really happy dancing on Shelton's tunes and enjoyed his mini show that he performed for them.

What is more, Shelton called Stefani and her three sons to celebrate Thanksgiving with his family. They were also present at his sister's New Year party that had Stefani filming all of them having a dance.

It is worth mentioning here that Blake Shelton and Gwen Stefani have made their relationship official and are rumored to tie the knot soon.