He watched his daughter breathing in, tucked in her bed and wondered if he were to bring her with him when she was an infant… would she be who she was today? No. If he had her when she was young, he would have warped her mind and used her to fulfill his every wish. Would she still be stubborn and do things her own way? Possibly.
He had to admit that he did use her. Who wouldn't? She was strong, the strongest creature of them all, even stronger than the being ruling Heaven. How did that happen? All he really knew was his followers trying and failing multiple times to have the sacrifice bare a child. They always end up dying from pain, suffocation, or during intercourse.
Lucifer would always consummate because he was interested in sex and if they would succeed in what they promised him, then even better. The promise of a babe, a child to bring forth destruction and devastation to the world.