The Pearl Witch — Theda Hudson

When twenty-six year old Tarin knocks a small plane out of the sky with blue bolts of energy during sex, she realizes she must learn to control her powers before someone else gets hurt. Good news. Phillip, the very handsome sex magician, takes on the task of teaching her. Bad news. When she falls in love with him, but he refuses to admit he loves her even though they make hot and potent magic together. More news. The other man, actually an alien, begins to teach her to use her powers through S/m and bondage, and wants to use her to open a door between universes to let his people flood in. Worse news. He tried it with her mom and she died preventing it.