My Hookup Dilemma

So lately me and this guy have been talking about hooking up and it sounds great, but he doesn’t want me to tell anyone that we are going to hook up. I really want to but I’m really good friends with his brother and I tell him everything and I don’t know if I can withstand telling him that I lost my virginity to his brother. What do I do? Do I hookup with this INSANELY hot guy or do I wait to lose my virginity to someone that I can be public about? Pls help!!!