Undertail hypnosis series
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Undertale / UTMV sanscest hypnosis oneshots by Chris_ghosty77
Fandoms: Undertale (Video Game)
25 Dec 2025
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Summary
My first work, a book of oneshots focused on hypnosis / mind control.
Most stories will be non/dub-con so be careful.
Almost any ships, focused on sanscest.
Edit: The number of tags being limited, please read the summary of each chapter to know the warnings / kinks. I hope you enjoy reading this book as much as I love writing it.Series
- Part 1 of Undertail hypnosis series
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A book for my fontcest stories involving hypnosis and all that.
Will contain any ships involving Sans and Papyrus, any AU too. That also means two Sans and a Papyrus and vice versa.
The tags will be updated as I write, if you think I forgot one, please tell me.
For Sanscest, go see my other book.Warnings will be given in the notes before each chapter.
Series
- Part 2 of Undertail hypnosis series
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Sanscest hypnosis oneshots dark kink edition by Chris_ghosty77
Fandoms: Undertale (Video Game)
13 Nov 2025
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Summary
A second book for sanscest, warnings given in the notes before each chapter.
This book will mainly be for what I personally consider "dark kinks", which means essentially any kink I could use in the other book taken to the extreme (for example, knife kink in the first book won't involve blood while here it will, of course, I'll inform you of it in the notes) but also kinks like piss, public humiliation and probably more that I can't remember right now.
This also means darker hypnosis related kinks like mind break or mind erasure and bad ends (when the character doesn't have the possibility to go back to who they were before the hypnosis or they lose themselves completely, think of a dronification like with Killer's chapter but there is no hope of him being brought back), there will also be depictions of unsympathetic hypnotists, think possessive Nightmare without any love for his boys (this is a general idea of course, it will vary between oneshots).I know this is long and I apologize for that, I just wanted to be clear about the type of content that I'll put here. Tags will be updated with each new oneshot.
Series
- Part 3 of Undertail hypnosis series
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Reaper's Master (Afterdeath but Reaper has a sentient dick) by Chris_ghosty77
Fandoms: Undertale (Video Game)
17 Jun 2023
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Reaper has to obey his Master. His body belongs to Master. He is just Master's vessel.
Who is Master ?
His cock of course !Look at the tags for warnings.
Series
- Part 4 of Undertail hypnosis series
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Where I'll put any fic inspired by Megalosomnia, as well as my own AUs about it.
Check out the creator (I don't know if this even needs to be said but please be 18+, same goes for all my works) :
tumblr : https://megalommi.tumblr.com/
pillowfort : https://www.pillowfort.social/mmishame
twitter : https://twitter.com/megalommi
Series
- Part 5 of Undertail hypnosis series
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Undertale Kinktober 2023 hypnosis edition by Chris_ghosty77
Fandoms: Undertale (Video Game)
31 Oct 2023
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Summary
My first kinktober, one chapter a day for a month.
As you've seen in the title, there will be hypnosis in every chapter no matter what, please look at the first chapter with a list of every chapter or within a specific chapter's notes for more kinks and warnings as I do not have enough tags for all of them, I will update tags as I progress through the month.Series
- Part 6 of Undertail hypnosis series
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Other undertale ships hypnosis oneshots by Chris_ghosty77
Fandoms: Undertale (Video Game)
01 Aug 2025
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Summary
This work is for hypnosis works with any undertale ship that isn't pure sanscest or fontcest, though it will absolutely contain those two sometimes.
Series
- Part 7 of Undertail hypnosis series
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Undertale Kinktober 2024 hypnosis edition by Chris_ghosty77
Fandoms: Undertale (Video Game)
03 Nov 2024
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Second kinktober, this one will be very different, as I just don't have the time to write as much as last year, so I will do one chapter a week and one Halloween special.
Just like last year, chapter 1 is the table of content, all chapters contain a form of hypnosis/mind-control/brainwashing so they will not get repeated in the warnings.
Also, as there is no official list for the 2024 kinktober, I will be using the 2022 one instead, choosing the kinks from every days contained within a week.Series
- Part 8 of Undertail hypnosis series
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Journeys through Yggdrasil by Chris_ghosty77 for damnedxfate
Fandoms: Undertale (Video Game)
23 Feb 2025
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A collection of oneshots set in the wonderful multiverse of my friend DamnedXFate, featuring my own character Hypnos. Half of the multiverse has collapsed and the survivors are gathering in the remnants of what is left.
Series
- Part 9 of Undertail hypnosis series
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Birthday gift for DamnedXFate 2 by Chris_ghosty77 for damnedxfate
Fandoms: Undertale (Video Game)
22 Jun 2025
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Summary
Dream finds a gift from his brother after starting a peace treaty. It's a dildo, and Dream just can't seem to get it out of his head for some reason. It quickly becomes all he can think about.
Warnings are dub/non-con, incest, dildo, voyeurism, obsession, overstimulation, virginity kink and loss of virginity, creampie.Series
- Part 10 of Undertail hypnosis series
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Gaster never refused a challenge, as the ruler of the Ironfalls, he needed to be the strongest, the most feared king in order to be respected, a philosophy he held in high regards and had tried his best to impart to his elder son, Cross. To stop challenging yourself both physically and mentally meant stagnation, weakness, death.
However, a potential civil war wasn’t the kind of trial Gaster had in mind, as its king, he needed the Ironfalls to remain at the top, feared and respected. But the first prince always had a soft soul with a kindness that had led him to take in a harem of very capable concubines, but one that now pushed him towards challenging his father for the throne.
The king was confident he could ultimately win the conflict, but that would leave the country vulnerable. No, he needed a way to ensure Cross would never again think of opposing his father.
So he decides to hypnotize his son, his harem and the spymaster. Gaster is a little rusty on hypnosis but he’s sure he can quickly get back into things using some tools, to induce both pain and trance.
General warnings for all chapters: rape/non-con, hypnosis, mind-control, brainwashing, soul manipulation, detachable/floating hands.Series
- Part 11 of Undertail hypnosis series
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Heaven is a happy farm life (Outer/Crop) by Chris_ghosty77 for ohitsthatguy
Fandoms: Undertale (Video Game)
19 Jul 2025
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Summary
Crop knows Outer wants to ask him to live with him, but Outer is way to shy to ask, so Crop decides to take matters into his own hands, hopefully Outer will eat all his food like a good slut, Crop made it with lots of love.
Warnings in the tags !Series
- Part 12 of Undertail hypnosis series
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Lust is the most prized escort in town, with a Boss no one has ever seen and who's the subject of many rumors. Red and Sans are both heirs to the two most powerful mafia families in town. What happens when they're accidentally booked with Lust together ? And are they truly the ones in control ?
(Content warnings in the tags)
Series
- Part 13 of Undertail hypnosis series
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Undertale Kinktober 2025 hypnosis edition by Chris_ghosty77
Fandoms: Undertale (Video Game)
31 Oct 2025
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Summary
New kinktober! One chapter a day for the entire month!!! With a list I made myself, very excited to show everything I've written.
Just like the other ones every chapter contains some form of hypnosis/mind control/brainwashing. I'll do my best to tag but i can't tag absolutely everything so look at the warnings at each chapter or in the table of contents.Series
- Part 14 of Undertail hypnosis series
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When pure Lust breaks a Mobster's mind (Mob/Lust) by Chris_ghosty77
Fandoms: Undertale (Video Game)
29 Oct 2025
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Summary
Mob has been in worse situations before, he's sure they'll get out of this mess. Lust, the prostitute keeping him company while waiting for the police to release them, isn't so sure. The officers have a devious plan to make sure neither prisoner will ever be the same when (if) they get released. Now with the possibility of choosing the poor skeletons' fate!!!
Warnings in the tags.Series
- Part 15 of Undertail hypnosis series