The Strength of the Pack — Jorrie Spencer

Since his sister disappeared, Seth has lived in solitude. Despite his deep need to be part of a pack, he sets himself apart from werewolf and human alike. When he hooks up with his teenaged crush, loneliness and physical desire overcome his distrust. Jamie welcomes his attentions, and Seth rationalizes they can have one night together before they part. However, Seth and Jamies bond runs deeper than he knows. He cannot return to the shadows. Yet exposure may bring danger to them all.