Why do your friends need to know about who you have sex with? Of course if YOU feel it's necessary to fuck and tell, that is your prerogative, but your friends don't have a "right" to know and neither do the two guys in the story. In my view, telling them would come across as very "highschool" or drama creating. Any sexually experienced person knows that sex is truly "no big deal" 20 minutes after you're done. It's the EMOTIONS that are a big deal and these emotions are what actually have a lasting impact on individuals and have the potential to change us profoundly. Positively and negatively. Sex is fun, it feels good and is just a natural component of being in a body. Only society makes it weird/shameful/fucked up/dangerous. I vote keep it to yourself.