Reluctant Omega by Ruby Nox

Hugo has always despised his omega status. He hates his heat and he hates the attention he draws from the alphas around him. He wants nothing more than to feel in control, even if it means taking an experimental and possibly dangerous “heat blocker”. But when he gets sick, his sullen alpha roommate takes a sudden and annoying interest in his welfare. An interest that starts to make Hugo begin to believe that being an omega isn’t such a bad thing after all. That maybe a mate might make him happier than he’s ever been.

After his beloved little brother found his mate, Cory is left feeling restless and drifting. He’s spent his whole life taking care of someone and he doesn’t know how to do anything else. So when a certain aloof omega falls ill, he just can’t stay away. As Hugo’s walls start to crack, Cory finds that there’s more to the omega than he and the pack first thought.