A Summer to Remember — Mary Balogh

Kit Butler is cool, dangerous, one of London's most infamous bachelors--marriage is the last thing on his mind. But Kit's family has other plans. Desperate to thwart his father's matchmaking, Kit needs a bride ... fast. Enter Miss Lauren Edgeworth...

A year after being abandoned at the altar, Lauren has determined that marriage is not for her. When these two fiercely independent souls meet, sparks fly--and a deal is hatched. Lauren will masquerade as Kit's intended if he agrees to provide a passionate, adventurous, unforgettable summer. When summer ends, she will break off the engagement, rendering herself unmarriageable and leaving them both free. Everything is going perfectly--until Kit does the unthinkable: He begins to fall in love. A summer to remember is not enough for him. But how can he convince Lauren to be his ... for better, for worse, for the rest of their lives?