The Holiday Claus by Ann Einerson

Santa had it right with his Naughty and Nice list.
Me? I was firmly Team Nice.
Need help throwing together a holiday wedding in four days, big brother? No problem.
Need me to share my bed with your super hot best friend? If I must.
Want to be sure I won’t accidentally fall in love with said super hot best friend—Brooks Claus? Can’t promise that.
He may have moved away from our small town years ago, but there’s something about being near him again that brings back memories of that innocent crush I never quite got over.
Fifteen year old me had good taste because Brooks remains the hottest guy I’ve ever seen. Biceps to die for and a perpetual frown I wish I could flip.
He’s far too serious, much older, and exceptionally grumpy to ever be mine.
Until he kisses me under the mistletoe.
Where in the fine print does it say that being a little naughty can also be nice?