You are somewhat close to your brother but he watches and judges your actions closely because he cares and wants the best for you.
Do you tell your brother without giving the backstory, risking him finding out about the sex from his friend?
Do you tell your brother with the backstory, risking his scorn and loss of respect for you?
Do you continue to be quiet about it and just take the creepy sexual advances?
Or do you just fuck the friend and not give a shit about any and all consequences?
What was your last sticky situation?