Is there a tag for situations where someone walks in on a situation where MC is happening, or has already happened, and then gets "invited to join" (in the most euphemistic sense possible).

Some examples off the top of my head:

post #10864
post #10478

So far as I can tell, those don't have any particular tag that would fit, but that doesn't necessarily mean one doesn't exist. If one doesn't, does anyone else thing there ought to be? What should it be called?

This is probably too subjective to be tagged (IDK would "invitation" work or something?) but I bet it would work as a pool.

To answer your question, no, there's no tag for it to my knowledge.

I don't believe we have a tag for it. Instead of a tag, this idea would be perfect for a pool, though!

Edit: Wow. First time I was ever ninjaed by petal. :P
Well done, friend!

SPEED DEMON

On a related note, is there any particular etiquette for adding in new tags? I've been thinking that there should be something like "povsub", for cases where the mc target is the reader/pov character.

There's already a pov tag, but that gets added to a wider variety of situations.

Well, sort of. Us administration here (Mindwipe, Henry Killinger, and myself) try to keep a close eye on new tags made by people and get rid of them if we find them redundant. We usually don't mind new ones being made if they actually serve a worthy purpose, but we also tend to be very picky about what we allow and what we scrap, since we're trying very hard to limit tag bloat (having too many tags).

If you want a new tag, probably the best way to get the ball rolling would be to <<hypnohub.net/forum/show/8844|bring it up on the forums>> or, sometimes, on the comments of the image that made you think up the tag. We tend to watch comments and forum posts very closely, so we're bound to take notice eventually and come up with a reply of some sort.