(I didn't mention it in the first chapter, but Gabriel is male in this story, and for those who didn't know he was sometimes depicted as female, look up archangels on google.)
Jessica made her way up the list of male angels, starting with the weakest and making her way up to the stronger ones, while John did the same for the females.
With each angel they corrupted each grew more powerful, and when the other fallen angels corrupted another Jessica also felt her power increase. There were still almost uncountable angels in heaven with god creating life on other planets as well & they still needed to be corrupted but the latest word from the corrupter made Jessica make a desparate move.
Her succubus counterpart had already corrupted almost 1000 humans and Jessica couldn't help but feel jealous. She wanted Jim to herself and had a plan to achieve it. Afterall, what would be a greater feat then corrupting the most powerful Archangel of them all, the very one who had fought Satan and enchained him.