That orbed maiden, with white fire laden
Whom mortal call the moon
Glides glimmering o'er my fleece-like floor
by the midnight breezes strewn..."

It's called "The Cloud" by P. B. Shelly. The main characters, Peter and Christine, from Lycanthrope High. In the story, Christine is Peter's Maiden of the Moon, and in both human and Lycan, he will always protect her.

Peter and Christine from Full Moon High.

Sorry if the picture turned out blurry.