Steven and Naruto are in the same universe. Naruto, Sasuke, Lee have Crystal Gems bloodline from their mother's side. Which they awake them in different ways. Their Gems can be any colors and any place of their body. Choose what weapon they get/use and who they fuse with.
Garnet can adopt all three of them or one, two. (We all know garnet can be a great mom)
Pearl can adopt one of them too or be a Aunt/Big sister.
Amethyst can be an Aunt/Big sister
Naruto Age: 7 Birthday: Oct 10
Sasuke Age: 8 Birthday: July 23
Lee Age: 9 Birthday: November 27