Fierce King. Dark Throne, #1

She's forbidden. Owned by the Bratva, we take her captive. My brother wants to share her. But a man like me doesn't share. I'll do whatever it takes to make her mine. A forbidden, captive romance. Series is complete. We're the Kings, Brutal and heartless, we rule the Vegas mafia. Our dark underworld is savage and unforgiving, It takes everything from me, including the woman I love. Ten years later I come face to face with Rose, She's innocence and light, and reminds me of everything I lost.
She also looks exactly like the woman I once loved. Turns out, they're closer than I could've imagined. She hates me because she thinks I killed her sister, But I take her captive anyway, because I want her, In my bed and by my side. She belongs to me. And no one, not the bratva or my own brother, will steal what's mine. Tropes in this duet include enemies to lovers, captive, found family, and has protective Alpha males.
This is a MF series but this book includes some MFM.