Board Thread:General Discussion/@comment-26006155-20190820122909/@comment-26006155-20191110131750

And yet Papyrus had considerably more time to accomplish that feet. Where Sans calls Frisk right after Papyrus encounters him for the first time.

We already know Sans had Toriel's phone number, he's been talking to her in texts for ages, telling her about Papyrus. That's how Toriel knew who Papyrus was the instant she realized Sans was The Knock Knock Joker.

And Toriel just handed Frisk a phone with Sans' door key on it.

I'm sure Sans would like us to think the call was random.