Once Upon A Wild Fling

My brother's best friend has a proposition for me. Have I mentioned he's a sexy single dad? Tell me more...
There are a million reasons why Miles Hart isn't the man I should date but allow me to list the top three.
He's friends with my brother, he's a single dad, and he's a gorgeous, in-demand rock star. He might as well wear an off-limits, totally unavailable, and don't-even-attempt-to-ride-this-ride sign.
Then he asks me to be his plus-one when his band plays at his high school reunion, and ...