Thicker Than Blood by Sera Quim

EDEN VAUGN IS DEAD. ONLY JUDE ST. JAMES REMAINS. When Jude St. James came out as trans nearly a decade ago, his mob boss father, the widowed, sadistic Damian Vaughn, made him an ultimatum: Eden Vaughn could disappear, but the man he became was to be Damian’s secret weapon. Now, after being used as such for nearly half of his young life, Jude is tired of being controlled. It's time to take his life back. And after one hot, perfect night with two of Damian's greatest rivals, Jude makes up his mind. It's time to stop keeping his father's greatest secret. It's time to find out what's thicker than blood.