Well, I can’t really answer that for you, but maybe I can help you come to a decision. How did you find out? Is it your place to tell them or would it be the responsibility of the person who told you? If it were you, would you want to know? I’m glad you aren’t telling your father. That would be a sad way to live out the rest of your life. Which makes me wonder – if your brothers found out, would they tell your dad or stop seeing him?