Wolf Gone Wild (Stay a Spell, Band 1)

What's the worst thing that can happen to a werewolf? Unable to shift for three months, Mateo Cruz knows all too well. His wolf has taken up residence in his head, taunting him night and day with vividly violent and carnal thoughts. Convinced he's cursed, he needs the help of a powerful witch before he literally goes insane.
"Evie Savoie has always obeyed the house rules of her coven-no werewolves. They're known for being moody and volatile. So, when a distempered, dangerous werewolf strolls into the bar and almost strangles one of her late-night customers, she's ready to bounce him through the door. But the desperation in his eyes when he begs her to help him softens her heart and convinces her to bend the rules.
"What Evie doesn't know is that Mateo's wolf has a mind of his own. And now that she's in his sights, he wants only one thing. Her.