Satan's Virgin Mary

We've all heard the story of how God made a young girl named Mary pregnant, even though she was a virgin. She carried Jesus, Gods only son, and gave birth to him. Well what if the devil, Satan, wants a son the same way? Mary Sinclair was a quiet, shy girl in school. She went to church but was never really into it. She was an average student with average looks. What isn't average would be what is about to ruin her senior year of high school.
__________________________

Hey I just started this story and I've never done anything like this so any helpful advice/ideas would be useful. I hope you enjoy it!!!