The context: you are all friends in your twenties, men and women.
It is not unheard of (as much as I remember it) that hormones are high on that age. Which may lead to awkward situations when your body reacts faster (much faster) than your brain. Or at least this is how I remember it.
Having been in that case (as Fred, the fifth guy in your party who was watching and whose brain froze when a similar situation happened), the person who is now you responded (I quote her)
Have you fucking lost your mind???
To what everyone moved uncomfortably, did some "humm" and "well" and someone said "okokokokokok. OK".
- Some people may be offended for life that you have not flashed them. It is my personal opinion that you should get rid of them, these are not real friends.
- Normal people will just let it go
- Good friends (as we were) would tease about that for years (making everyone actually more and more comfortable).
Ah, the memories of colocation.
NOTE: I just realized that there is a united-states tag. You may want to say instead "Have you considered checking on your mental health?" to avoid being sued.