Under Your Spell

When Magnus gets magic from Lorenzo he is delighted and starts to feel whole again. Magnus uses it constantly. But using the magic so much is taking a toll on his health. Alec fears that if Magnus gets too carried away he could be seriously hurt.

When Alec asks Magnus to stop using magic they get into a big fight. And they keep fighting as Magnus is too addicted to the magic. Magnus uses magic to make Alec forget they were fighting. But when Alec accidentally finds out Magnus did this he is devastated that Magnus would use his magic against him.

This is based on a Willow and Tara storyline from Buffy the Vampire Slayer but unlike the original this has a happy ending.