Conquer by Michelle St. James

They call him the Lion.
The son of a high-ranking bratva leader, Lyonya Antonov has been waiting patiently to avenge his father’s imprisonment and take his rightful place at the top of the mafia food chain.
He’s just missing one piece of the puzzle – and her name is Kira Baranov.
Kira Baranov is a mafia princess with no power.
It might be the 21st century in the rest of the world, but in the bratva, Kira might as well be a 50s housewife. This despite the fact that her father, Viktor Baranov, has taught her everything he knows.
Lyon knows Viktor is a king without an heir
Kira knows she can’t keep the Baranovs in power without a partner of the male persuasion.
The wolves are at the gates, vying for power in a world where one mistake can be deadly. But when an arranged marriage becomes sizzling desire, the line blurs dangerously between business and pleasure — and it may cost Lyon and Kira their lives.
It’s a Savage Empire – and it’s not your mother’s mob.