you are the perfect daughter of Lucifer after he was kicked out of heaven just because he is a fallen angel so he became a demon and you glared at God and you went to the well and jumped showed the average finger and you too became a fallen angel and a demon just for the sake of your father

one day you two met and hugged each other and it was evening Lucifer smirked at Dean and Sam and he decided to introduce you to them and you

Lucifer: "Well it was time to meet my daughter Lilly."

and then you appeared in front of both boys the Winchester brothers Sam is Dean's younger brother and Dean is Sam's older brother they both look at you with a surprised look and then they saw your eyes red like Lucifer