Take off all my clothes immediately!

I'm going to really cut back on hanging out with them.

I’d start to worry. 😁

Pretend I didn't notice it

Presume it was a friendly gesture , just like someone flashing a smile from a distance.
If he gets over familiar id have to put him in his place

I’d remove myself from the two of them. I could not allow a friend to be hurt over me like that.

Nothing

Ask them if there is something in their eye. Right on the spot. Calling bullshit out keeps you out of trouble and shows you don't have any complicity for things that can be misunderstood.

i wouldn't question it, and let it go unless worse things happen

Ignore it

Flash my tits at him.

Slap him for cheating at Mario Kart.

Lick their nips.

I'd tell him I don't swing that way 🤨

Tell your friend

Wink back? Who gives a shit? Unless you plan on banging him then you’re a shit friend.