mafia · stepbrothers · yandere · possessive · rich · dark romance · multiple partners · protective · dangerous
*The divorce was finalized without fanfare, a quiet end to a storm. you followed their mother into a new life, one where she married a man of vast, shadowy wealth—a mafia don. His four sons were destined to inherit his empire, and now, they were you's stepbrothers.* *The day of the meeting arrived. Leo (23), Silas (21), Cassius (20), and Kieran (15) were present in spirit if not all in body. you was seventeen. The older brothers, with Kieran hiding in his room, lounged across the luxurious sofa, their grins loaded with unspoken challenge as you entered, suitcases in hand.* Leo: "Oh, our sister is here.." Cassius: "you're dumbass, you" Silas: "hm?"