Undertale Tickle Stories (Main Series)

A "Humerus" Sleepover (Chapter 1)

This story takes place one week after "Mew Mew Tickly Cuties." And in this story, Frisk and M.K. (Monster Kid) have made plans to spend a night with the Skelebros. :) Unknown to everyone except Frisk, M.K. is having doubts as to whether or not he's a good kid due to how he humiliated Undyne the previous week. Perhaps spending a night with his favorite skeleton duo will help convince him otherwise. :)

One more thing, I support the theory that Gaster is the father of Sans and Papyrus. :)

Undertale © Toby Fox.

A "HUMERUS" SLEEPOVER

Chapter 1: M.K.'s Secret (Tickle) Weapon

It is a Friday afternoon and Frisk, M.K., and Asriel have just finished school for the day. A while ago, Gaster picked the three children up from school. Asriel has made plans to spend his afternoon with Gaster while Frisk and M.K. have made plans to stay overnight with Sans and Papyrus. The reason Chara isn't with them is because she was picked up by Asgore so she could spend the night with him before the two of them go see one of Mettaton's performances tomorrow. Asgore was only able to get two tickets and Frisk and Asriel thought that Chara should go with him since she hasn't seen as many of Mettaton's performances as they have. This means that Asriel will be alone with his mother tonight after he's finished spending time with Gaster. (If any of you have read my previous stories, you'll know what Asriel and Toriel will be doing together. ;))

A few minutes later, Gaster arrived at his sons' house to drop off Frisk and M.K. Sans wasn't home, but Papyrus was and Gaster and Asriel talked to him briefly before they took off.

Papyrus: Oh, hello everyone!

Frisk and M.K.: Hi Papyrus!

Asriel: Howdy Papyrus!

Gaster: Hello Papyrus. I'm here to drop Frisk and M.K. off as I promised.

Papyrus: Thanks Dad.

Gaster: I might stop by again later tonight. But for now, I'm going to spend some time with Asriel.

Papyrus: Sounds good Dad. I'll be sure to tell Sans you stopped by. You two have fun.

Asriel: Oh we will Papyrus! Like always!

Gaster: Hehe. *rubs Asriel's head* Couldn't have said it better myself. Bye kids!

Asriel: Bye guys!

Frisk and M.K.: Bye Dr. Gaster! Bye Asriel!

Gaster and Asriel then left the house, leaving Frisk and M.K. alone with Papyrus.

Papyrus: I'm so glad you kids are here. I'll start cooking some spaghetti for dinner. In the meantime, you two can get settled in.

Frisk: Do you want any help getting dinner ready Papyrus?

Papyrus: Frisk, you and M.K. are my guests. You don't have to help with dinner. Besides, you kids deserve to relax after a productive day of school.

M.K.: Sounds great Papyrus!

Frisk: Do you know happen when Sans will be here?

Papyrus: Hmm, I don't know Frisk. It's hard telling what Sans is up to these days. For all I know, he might be taking one of his afternoon naps in the park or something.

Sans has a part time job running a hot dog stand in the park during warmer months.

Frisk: Haha! I bet he is. Feel free to let us know when he shows up. I want to be ready in case he decides to play any of his practical jokes on us.