Logan is book one in Karin Winter's The Valeur Billionaires series which is a contemporary billionaire series focusing on the Valeur brothers. 

I loved this book, especially Sloane Harris. She's our talented genius which I love and found her whole personality and ability to be strong and also vulnerable at times. She's the opposite in so many ways to the first Valeur brother who's our leading man; Logan. He is very similar to Sloane because they're both so very focused on their work, but he's also extremely introverted and withdrawn whilst Sloane comes across as being a lot more social. I wanted to reach into the page and give Logan a hug and perhaps pep talk, though he'd no doubt hate every second of it. Then again, he's known as The Dark Lord so there's that.

Their chemistry is off the scale, and Karin Winter's writing has these two unwitting lovebirds and the spice is strong. However, it feels natural and real from the page… I do love the fake dating that the two engage it, and there's moments that had me giggling just as often as there might be a blush to my cheeks.

If you're after a new spicy romance, with a strong female lead and a gentleman who can forget his manners when confronted with temptation? Then I'd suggest The Valeur Billionaires.