High school teacher Brooklyn Briggs has always been great with chemistry but terrible with relationships. When a guy drops into her life—literally—and offers to coach her into getting a date with her longtime crush, she's willing to accept any help she can get.

Even if her new flirting coach is her brother Houston's best friend, the guy who drove her crazy all throughout high school.

Jordan Torres never expected to see Brooklyn again. After the way he teased her in high school, she has every right to hate him. But despite warnings from her brother, he's drawn to her in a way he's never been before and can't seem to remember that she's in love with someone else.

Neither can she.

Both of them value their relationship with Houston too much to risk things going wrong, but they may not have a choice. The heart wants what the heart wants. Besides, Brooklyn can't turn a blind eye to perfect chemistry.