The Billionaire Borrows a Bride (The Wedding Auction, #5)
Myrna Mackenzie

Kate was in trouble the moment Spencer won her at the auction. Pretending to be Spencer's fiancee was too much like stepping into a fairy tale. Kate knew she shouldn't get too close to the irresistible billionaire, or allow him to seduce her with bone-melting kisses. Because falling in love was definitely not in the job description....