5 freaking Stars which are still too less for this book! 
 There are romances where the leads are just meant to be. Whatever their issues or their hang-ups may be, don't matter a fig when they two are together. Even the two can't deny each other because the they form that sort of completeness that couldn't be more right. The Duchess Deal is a story of such two characters. My usual self is desperately trying to control the cheese factor of my review, but it is just so impossible! This book...aah! It just hits right in the heart. 
 From start to finish, even when the leads were exasperated with each other, they never missed out on the opportunity to be uproariously snarky. There was a moment when I kept howling for so long that my lungs stomach started aching. Take these for example : 
 "I am a duke. Of course I didn't follow you. I had you followed. 
 It's an entirely different thing." 
 She shook her head. "And yet no less disturbing." 
 and another 
 "A broodmare. Hm. I'm not certain I mind that comparison. If you're a broodmare, that would make me the stud." 
 and my absolute favourite one from the book, 
 "I made you a fire. You may now admire my manliness." 
 Any two people, who share such joy in their interactions can be nothing but just perfect for each other. Sigh. My poor heart. I kept imagining the leads something like this. 
 Looking into each others' eyes. That small smile and deep peace that is there on their faces. 
 Which reminds me, Have you seen the cover? 
 What kind of marvelous designing is it?! 
 In short, I have zero, zero complaints with this book. And it goes without saying, it is a must read.