Earl's Practical Marriage by Louise Allen

Childhood friends all grown up. Now they must marry for convenience!

Giles Redmond, Earl of Revesby, is marrying childhood friend Laurel Knighton because it's the only way to save his family fortune. Last time he saw her she was an unconventional tomboy…now she's a beauty. But finding himself aroused by her is as baffling as it is surprising. Who would have thought such an infuriating, disobedient bride could be so tempting?