Gold by Runa Saevik

Six weeks, a book about wine, no complications. That was the plan.

Luca Casini’s father left him one word before he died. Luca followed it across the border into Slovenia, telling everyone, including himself, that the trip was about research.
Matej Kos makes cheese in a cave older than the border itself. He speaks rarely, builds walls that outlast empires, and has built a life in which no one can let him down, because no one is in it.
Neither man came looking for company. Something fits almost at once, easy in a way neither trusts yet: coffee that goes cold while they talk, jokes pitched between insult and affection, whole days that fall into a rhythm before anyone decides they should.
The wanting arrives, blunt and physical and impossible to talk their way around. But when a key hits the floor, everything quiet turns loud, and what the stone has been holding changes everything they thought they were building.
Some places are inherited. Some are found.

MM · forced proximity · found family · high heat · HEA · standalone, Book One