Checking It Twice by Claire Hastings

She’s made a list of her own, and he’s just the man to help…

Haven Taylor is tired of being called a Goody Two-shoes, and her brother’s best friend might be the key to fixing that.
DB Elliot is seriously sexy and without a doubt someone she can trust for a no-strings-attached secret fling. After all, she’s known him her entire life.
Inspired by her favorite actress, Haven is ready to claim her coal by putting together a different kind of naughty list. And DB is happy to help check everything off the list.
But no one can know—especially not her brother or the coworkers who make Haven feel about as grown up as the six-year-olds she teaches.
Haven’s days might be filled with arts and crafts, the ABCs, and owies, but that certainly doesn’t mean her nights have to be.
Her plan is foolproof.
Until she realizes that she might want to check some items off the list with DB more than once…