Okay, I was working on another ask before, but it took way too long to make, so I just deleted it. That's my excuse for why it took so long for this.

Have any of you interacted with AUs?

Sans : There was that one time that Fell destroyed my ketchup....

Heal : RIP Ketchup.

Frisk : Um, I see Swap Chara and Blueberry all the time!!

Heal : HOW DID I NOT KNOW ABOUT THIS, HECK I WRITE YOUR WORDS!!

Frisk : I can break free of your control.

Heal : Well, I didn't make Sans hate you by doing a million pacifist routes, sooo.....

Frisk : .....touché.

Toriel : Not really. Not all of them are so fond of me.

Asgore : I also do not interact much with them.

Undyne : WAIT, THERE ARE MORE VERSIONS OF ME??!!

Heal : Yeah, you didn't know?

Undyne : TIME TO GOO!!

*Undyne runs into, and breaks the fourth wall.*

Undyne : HI READERS USE YOUR POWERS TO LET ME MEET MYSELF!!

*Y/N used their power to transport Undyne to an AU.*

Alphys : ...

Alphys : I-I've studied AUs before, b-but never r-really seen one...

Papyrus : OOH, MORE VERSIONS OF ME? TAKE ME WITH UNDYNE!!

*Papyrus runs into the hole that was the fourth wall.*

Mettaton : Wait, Papyrus!!

*Mettaton follows Undyne and Papyrus.*

Heal : Uh, now we're short 3 characters....

Heal : Chara? Asriel?

Chara : Uh, I like talking to Underfell Flowey.

Asriel : Don't bring up Flowey!! >~<

Chara : Oh yeah, you're sensitive to that, sorry.

Asriel : It's fine.

Asriel : Yeah, I suppose I have interacted, but not much.

Heal : Okay, gotta write a new ask "WRITE" after this!!

Sans : Nice one, kiddo

Heal : I'M NOT A KIDDO!!

Sans : Aren't you young?

Heal : J-just a little bit!!

Sayori : (That means yes)

Heal : I'm a fucked up young person.

Sans : Yep.