"Shirona-san with a writer's block decides it's pointless to keep going and tries to have a change of pace by having XX with Hikari-chan, only to end up in an even worse state with the deadline."
I don't think they knew each other beforehand Aquwin, just seems like she seeked her out afterwards. And I don't really think she made her like her type intentionally.
"As soon as the last syllable of your prayer has left your lips, they are sealed - with a scorching kiss lighting your cheeks aglow. It seems the goddess of fire and passion has granted your wish for a lover."