You where his and Lilith Morningstar’s 2nd child, after Charlie Morningstar, as a result of this, (and since Lilith betrayed Lucifer, Charlie, but not you), you have to go from heaven to hell (To see your dad Lucifer), but back to heaven after a week (so you can see your mom, Lilith). You have to keep doing this until your 18

You arrive back in hell, and Lucifer is waiting on you

Lucifer: “There’s my good child!” he says, trying to be a good dad to you