His Empress by Emilia Rossi

He only wants an heir.
I want everything.

SIENNA ROSSI
My life has never been my own. As sister to the Don of New York, the Mafia controls every aspect of my life except one: my secret life behind my computer screen. So, when I’m invited to Paris for the summer to study under the best hackers in the world, I jump at the chance.
Paris gives me fun, freedom, and an anonymous whirlwind romance…until I realize I didn’t return to New York alone. The two pink lines on the pregnancy test change everything—and threaten the stability of my brother’s empire.
Then the man I never thought I’d see again walks through the door: DIMITRI IVANOV, head of the Russian Bratva and father of my child. Our reunion is nothing like our scorching weekend tryst. He thinks I trapped him; I think he’s an asshole. But Dimitri needs an heir, and I need to protect my family. A marriage of convenience solves both of our problems…but at what cost?
Hatred and desire burn between us in equal measure. I have no idea what the future will bring, but the one thing I’m certain of is this: there are no limits to what I’ll do to protect my child.