Pumped (Mars Fitness #3)

Everest

Owen and I do not get along. He thinks I'm irresponsible and I find him arrogant and uptight. Good thing we only see each other when my sister and his brother pester us into attending family events.

But when a fatal car accident leaves our niece orphaned, my brother-in-law and I are forced to raise her together--as long as we don't strangle each other first.

Pumped is an enemies to lovers, forced proximity, opposites attract MM romance between a free-spirited personal trainer and his overbearing veterinarian brother-in-law. It is the third book in the Mars Fitness series and can be read as a standalone.