Ruin Me By Midnight by Ginny B. Moore

She has nothing to lose… except her heart.

Violet Waverly barely survived the worst of high society’s gossip, having earned a scandalous reputation with none of the fun to go with it. When she faces marriage to a horrible man, she has one escape—ruination. Her only problem? She needs a lover to put her in a compromising position. Callum Hawthorne is just the man to play the role of her paramour… as long as they only pretend. Will a ten-day country house party be enough time to annihilate what remains of her reputation without falling for the grumpy Scot?
A man more accustomed to shipyards than champagne, Callum Hawthorne has ten days to secure enough investors to keep his family business afloat and ensure his cousin’s damning secret remains hidden. He never expected a whisky-eyed beauty to demand his help in her salacious schemes, nor to find so much pleasure in her company—and her bed. Weighed down by a childhood tragedy, he will give her what she asks for, but he knows he can never give her what she truly wants—his heart.