Carole Mortimer 
To Marry Mckenzie [EPUB ebook] 

Logan Mc Kenzie liked his life exactly how it was with no surprises, and without a wife.Then Logan learned his mother was about to marry for the third time, and that Darcy, his very pretty stepsister-to-be, was in danger of being hurt by that marriage. So he found himself getting involved not only in trying to prevent the forthcoming nuptials, but with Darcy herself…and his carefully controlled existence was turned upside down!