Charlie's Hero (Heroes #1)
Nic Starr

But Josh’s reluctance to come out to the brother who raised him puts pressure on their fledgling relationship. While Charlie understands Josh’s concerns, he can’t help growing impatient. After all, Charlie came out years ago.
It’s not until Charlie confronts his own parents and realizes he hasn’t come to terms with their rejection that he fully understands what Josh has to lose. But Josh is Charlie’s hero, and Josh will do anything to prove to Charlie that to be part of a family, he doesn’t need his parents.