Undynexalphys Stories

Frisk found herself having a little crush on Sans until it turns out to be a huge liking towards him. What will happen when she confesses her feelings to him? Highest ra...

A long KingDings fic because this ship does not get the attention I think it deserves. I love this ship, and it's adorable. I plan on making this a full story, so buckle...

Frisk noticed that Sans has been acting weird even Papyrus, since frisk had DETERMINATION, she/he was not going to give up, until they could answer. As for Toriel, she w...

Fresh has an almost perfect life. He keeps on top of his homework, has great, nerdy friends and keeps out of the way of the troublemakers- The Jocks. But that all change...

Hi guys this is a new story based off of the game undertale. Also this is my first fanfic I have ever written so I hope you like it. Frisk is 13 and so is chara. Sans is...

Y/N was the eldest of the royal family. Her life was great. She was turning 16, the age where she'll be able to help her parents with royal duties, and get more privileg...

On hold "You have the most beautiful smile Y/n." "How do I look?" "You love lovely today and everyday!" This is a Friskxreader! You and Fri...

Some fluff right there. Also, sorry for 'bad english'. Enjoy.

Will Frisk be happy on the surface with all of her friends or will one friend grow very important to Frisk become even closer. Join the skeleton bros, the royal family...

How many times have you seen this world, how many resets does it take for you to give up hope? Does anything even matter after all this, does trying do anything? Will th...

Please give me your full and brutal honesty.

Hola soy nuevo y esta es mi primera historia, y se que muchos me van a decir que porque pones a frisk como yandere y a como un debilucho , pero bueno tal vez no me dig...

The love and parenthood of the lovely undertale couple, Undyne and Alphys

A day... that's all it took for my world to come crashing down. A week... was all it took for me to fear the door. Six months... was all it took for me to become numb. A...

This is based on the video game Undertale by Toby Fox. This may contain references and other things from the game that you won't get unless you've played it. Summary: W...

Frisk has freed all the monsters from Mt. Ebott. Even bringing back Chara, also Flowey is on the surface too! Ships: Undyne+Alphys, Asgore+Toriel, Warning: Contains matu...

Everyone is on the surface. Undyne decides to go out and see her friends. When she realizes her house is burned to the ground, Alphys takes her to her house. What will h...

Undyne and Alphys had gotten together on the surface. She had been so nervous the day she proposed to her beautiful girlfriend. She wanted to be perfect for her and want...

An au story about rogues and a group of heroes. Monsters and a human fight to defeat rogues and ceep their lands safe. Thankyou for over 80 reads, i swear every time i...

Cover by my friend MagicCat666. After the monsters were finally freed from the Underground, they started living together with humans. A high schooler named Gaia tries he...