Knock-knock, I adore you.

Door puns pls
(Also English isn't my mother language so forgive me for any mistakes)(just like me lol jk XD)
Frisk went to a costume store to buy the door outfit just to make this pun. Frisky little thing.(Also my Frisk is a gril. I meant girl)
Also if any of can't read my awful hand writing, here's what they're saying:
Frisk: Hey, Sans. Can you guess what I am?
Sans:...
Frisk: Well?
Sans: judging from the doorknob, I'd say a door.
Sans: why though? you playin' dress up MT? (or are you here to tell knock-knock jokes?)
Frisk: No, it's because I ADORE(a door) you~
Sans: .... oh.

Frisk, I don't think that's an acceptable answer to Sans' question, but he seems he won't be able
to knock your statement out his skull any time soon.

Also there is a second part of this. Here is da link mah byatiful siblings~ :warandcats.deviantart.com/art/…

Undertale is owned by Toby Fox