MEN: If you (24) made out with your best friend's little sister (19), would you tell him (the best friend)?

Question

Now, we're assuming that the little sister in question is 19 years of age, just in case anyone got the wrong idea. I'm writing a story, and this is the sort of situation I've come upon. But I'm not quite sure how someone would handle that situation.

If you were say, 24, and you met/ developed a crush on your best friend's little sister (19) who liked you back. One thing led to another and you ended up making out with her, hooking up with her, or whatever, would you tell your best friend, even though you know he's really protective of her? How? When? Would you wait awhile, make sure he's in a good mood? Wait until you're ready? If you made out with her tonight, and you ran into him tomorrow morning, what would you say if/when his sister's name comes up in conversation? Let's say you've been friends for 10 years, now. Does that affect your decision in any way?

Answer 1

Better to tell him right away that you are attracted to his sister. You don't have to start off with, "hey, I made out with your sister!" Start off with "I think your sister is gorgeous and cool and she seems to like me as well" Gage his response and go along from there.