Billionaires of Lust

Cassandra is a writer who spends most of her time inside her own head.
Her favorite place to write is a cozy coffee shop she visits almost every day. She knows the regulars, the staff, and the ridiculously handsome man who often sits nearby.
Everyone knows him as Mr. Hottie.
It never occurs to her that a man like him might notice her, let alone want her.
Marcus, however, has noticed Cassandra for quite some time. In fact, his visits to the coffee shop have little to do with the coffee. He's been quietly nursing a crush on the woman who barely seems to notice him.
Then, one ordinary day, Cassandra nearly falls-and Marcus catches her.
For Cassandra, it's an embarrassing little mishap.
For Marcus, it's the first real interaction with the woman he's already been lusting after.
Marcus is a billionaire, a powerful businessman, and the owner of an exclusive BDSM club. His closest friend and business partner, Aiden, is another billionaire-an aristocrat with old European wealth and an equally adventurous appetite.
Then Cassandra's agent and publisher ask her to step outside her usual writing. Her books are already successful, but they believe she has the talent to explore darker, spicier stories.
There's just one problem.
Cassandra has absolutely no experience with the world she's being asked to write about.
Then Marcus offers her a way to learn.
One innocent writer. Two dangerously powerful billionaires. One world of luxury, lust, and forbidden desires.