I think if your brother starts making a big deal over this he's the one who will look foolish - PROVIDED that you maintain your composure and just shrug off all accusations with a smile and a comment on how people seem to be so very interested in this - they must think about it a lot themselves...
As for your parents, see what happens. If they go nuts on you, you can either claim your brother was lying (how's he going to prove anything?) or stand up to them. Your choice. I'm sure nothing will come of it though, because your brother probably does it just as much ;-)
As for your parents, see what happens. If they go nuts on you, you can either claim your brother was lying (how's he going to prove anything?) or stand up to them. Your choice. I'm sure nothing will come of it though, because your brother probably does it just as much ;-)