Carnalli Brothers Series by Pas Shen

Having come to terms with his newfound sexuality, Alan Carnalli flees college life and his childhood friend to take shelter at home with his brothers. He's shocked, however, when he learns that his brothers have been keeping secrets from him.

The tenuous, year-long truce between the Carnalli brothers is suddenly broken and Alan is once again caught in the middle. Now he must decide whether to seek shelter with his oldest brother, Quentin, or to stay with his other brothers and trust in their alliance with a powerful stranger. Also includes the short side story "Carnalli Crisis", which takes place before the events of book two.