Something Spooky — Janet Woods

Housesitting for her aunt, kindergarten teacher Ellie Bryce isn't happy when the irascible Patch Morgan and his son arrive on her doorstep, since she'd cast a spell to bring his brother there. Patch has more troubles than he can count and Ellie tries to help, using potions from her aunt's spell book. But some spells are slow-acting -- and have unexpectedly hot results. Paranormal Romance by Janet Woods; originally published by New Concepts