Living in Zin by G.R. Lyons

Tricked into a wine country vacation with his best friend and his enemy. In walks a virgin, and their love triangle is about to implode.
Maverick Jones has been secretly in love with his best friend almost since the day they met. But Beau is married to Dakota. Who has history with Mav.
Accepting Beau’s invitation to visit sounds like a recipe for disaster.
But Mav never could refuse Beau anything. Not even when he finds out Beau lured him there for a singles retreat, hoping to help him find love.
When a shy virgin walks into their midst, and all four of them wind up in bed, it becomes harder for everyone to keep their secrets.
And for Mav, opening his heart could mean losing everything.