Undertale AU Wiki

Welcome to the Undertale AU Wiki, the main place for documenting Undertale's AUs. If you wish to contribute, just know that it is REQUIRED for you to read the Rules and Guidelines and the Policy of the Wiki BEFORE doing so.

As this is an AU Wiki, this wiki is NOT meant for characters. The Undertale OC Wiki exists for those. This Wiki is also not meant for AUs that do not have presence anywhere else, and those should be put on the Undertale AU Ideas Wiki.

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Mysteryman
PHOTON READINGS NEGATIVE. ORIGINAL SOURCES NOT FOUND.

Unfortunately, this AU's original author has removed a lot of their work from existence, or some other entity has removed the AU. Therefore, the original source of the AU might not be available anymore, or the info might be scattered throughout the internet. So take everything you read here with a little grain of salt.

And if you happen to find anything from the original canon, please add it to the page along with a link so it can be easily accessed again.

Undertale - Savepoint
* (Seeing an article of an AU you can freely make content for...)

* (It fills you with determination.)

This article is about an AU that has been deemed community-shared, either by the author declaring it, or from long-term abandonment by the author. For elaborated information on community AUs, see the Templates policy page.

Open-for-use notice: December 11, 2018

Torialwut1

* My child... Are you looking at something that you are not supposed to?

* This page contains content that is not safe for work or other locations with the potential for personal embarrassment, and is not safe for children to look.

* However, if you are 18 years old or older... You may find something that you like.

* Be good, okay?

Discomfort
For less serious NSFW AUs, see Undertail and Under(her)tail.

Underlust is an AU made by NSFWShamecave, who temporarily gave permission to Skele-cakes to continue the AU. NSFWShamecave has since taken back the AU. All the characters are overly sexualized and search for sexual attention except Mettaton who was a victim of sexual assault/rape.[1] Everyone typically wears revealing clothing. Certain locations, such as Grillby's are also changed to fit the theme.

Backstory

Sometime after being sealed Underground, monsters began to suffer from widespread infertility, and their numbers began to dwindle. About a decade after the son of Asgore and Toriel had been stillborn, a human fell into the Underground. This human, named Chara, had the SOUL TRAIT of LUST, and soon after entering the Underground began murdering all monsters that crossed their path for their own sadistic pleasure. Eventually, this Human was killed and their SOUL captured.

After some time, it was decided that the monsters would use the SOUL TRAIT, LUST, in a fleeting attempt to raise the fertility of monsters and save their people. The duty to preform the injections was set to Doctor Gaster, who was to inject everyone of age with the LUST, including himself.

Although it was never expressly stated whether these injections succeeded in raising the fertility, what the injections did manage to do was make sure every adult monster in the Underground was put into a "constant state of heat". Ghosts are the only exception to this, as they lack a physical form.

Eventually, a new human fell into the Underground. A human named Frisk, who would make it their personal mission to show the monsters of the Underground what true love is, and how it is more effective than lust.

Story

Story has been re-posted by gorillazfan666 on DeviantArt. Direct links will be provided at a later date.

Chapter 1 focuses on the relationship between Mettaton and Papyrus.

Chapter 2 introduces Frisk, and the true beginning of the story.

Original creator, NSFWShameCave, has transferred ownership of AU to the community.

Gallery

Trivia

  • The AU was temporarily adopted by Skele-cakes a few pages into Chapter 2, but was quickly taken back by NSFWShameCave after only one page.

References

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