I have 2 Kids each with their own Xbox but only 1 Live membership. When Child 1 is playing Fortnite and Child 2 tries to do the same Child 1 gets kicked off. Reading up on this it appears you can't share Live membership simultaneously, so my question is, do i have to purchase another Live membership and if so can i do this on my account or do i have set up a new account to buy the second Live?