Dragon Heat (Dragon Series, Book 1)

Lisa Singleton has an unusual roommate-a fifty-foot dragon named Caleb who has glittering scales and a bad attitude. Little does she know that Caleb is actually a powerful warrior sent to protect her from those out to steal her magic and destroy the world. Or that Caleb can take the human form of a sexy hunk. Now, if he doesn't stop distracting her with those gorgeous bedroom eyes, they may not have time to stop their enemies before all of existence is wiped out. At least Lisa and Caleb will have savored every last minute.