1 - 20 of 1,926 Works in Ecto-Penis (Undertale)
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You are sans,
But you were someone before.After waking up as sans you try to find out who you are, but it seems like the machine in the basement has other plans.
Now surrounded by familiar strangers you try to find yourself in this new world.
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Most people spend their whole lives wishing that someone would come along and sweep them off their feet.
But what happens when that person is already in a relationship?
Who will fate honor? And who will be cast aside in the dust.
And the more important question... who will get a better grade on their quantum physics final?
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Holy cyclops!Could you believe that's an actual word?Anyways,here is a collection of one shots of the sanses either being wholesome,hating,or having sex with eachother.
Requests?𝐎𝐏𝐄𝐍...They're open!
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Bewitched, Bothered, and Bewildered by CrimsonAndCloverOverAndOver
Fandoms: Undertale (Video Game), Mafiafell - Fandom
29 Jun 2026
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Cherry Sweet is a rather unconventional performer at a club like 'The Velvet Crop' with her thick thighs and plush stomach, but she does well enough for herself. The patrons enjoy a bit of variety, but what will she do when she attracts the attention of a monster--and a mob boss monster at that?
Featuring a 1920's vibe with music from the 20's-60's, a meet-not-so-cute developing into a partnership, and a spitfire, plus-sized FMC. I hope you all enjoy!
Series
- Part 1 of Get Boned: Undertale Fics
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Sans did not remember his previous name, only that he had been human. Rebirth in Undertale was novel, but he adapted, until he realized that the universe he was in was not the original one.
Unfortunately, it was too late when the machine took him to another universe, into a room full of skeletons.
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Sans no recordaba su nombre anterior, solo haber sido un humano. Renacer en Undertale fue una novedad, pero se adaptó, hasta que cayó en cuenta de que el universo en el que estaba no era el original.Lamentablemente, ya era tarde cuando la máquina lo llevo a otro universo en un cuarto lleno de esqueletos.
Nota: Sé que suena como tragedia, pero en realidad es una historia bastante esponjosa de curación, o al menos eso intento. Nuestro protagonista tiene mucho trauma y lo va a sanar en una mansión llena de esqueletos incómodos
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kissing and hope they caught us (I wanna show you off) by Fishie16 for Meowserling
Fandoms: Undertale (Video Game)
26 Jun 2026
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There is a price that comes with immortality.
A sense of age that'll never truly come; a lingering knowledge that those you may possibly have affection for will soon melt away at their skin and will become no more–nothing more than a memory that you may eventually forget, clouded over with someone else–someone else who is entirely as temporary as them.
It had only been recently that he learned a new kind of pleasure–one he had always known of course, but never one he himself had thought to indulge in. It felt too intimate. Too standard; too positive.
Or;
Nightmare has three bad (crazy) bitches in his castle. How could he NOT fuck them?
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They have sex
- Language:
- English
- Words:
- 2,842
- Chapters:
- 1/1
- Kudos:
- 3
- Hits:
- 33
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Trading her freedom away for the safety of another, this book loving woman finds herself in a strange castle, guarded by the castle’s inhabitants. Unbeknownst to her, these four have another fate in mind for her… they’d agreed to her deal in hopes that she could break their master’s "curse".
With a heart as firmly guarded as their realm, the dark beast that reigns over the castle is resigned to a future alone and unloved. With a job as nasty as his self image, there’s no way this kind stranger could ever care to look upon him… right? Can a caring hand light a fire in this realm of permanent midnight?
A tale as old as time, told in a new way.
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There are Twice as Many Stars as Usual by pessimistic_frog
Fandoms: Undertale (Video Game)
24 Jun 2026
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Why did you have to meet him now? When you're old and decrepit and have nothing left to bring to the table. Fate really is a cruel mistress.
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Reaper is overwhelmed.
His wedding is approaching, his child with Geno is due soon, and the family business never stops demanding his attention. The empire practically runs itself by now, both the legal side and the criminal one, but Reaper is still the head of the family, and people like him never allow themselves to look away for too long.
As if that wasn’t enough, there are still his brothers. Ink and Error are chaos incarnate, impossible to control and even harder to survive. But his biggest concern will always be the twins.
Dream and Nightmare are getting harder to keep close, and in their world, one mistake is enough to lose someone forever.
So when an unwanted suggestion about strengthening their security appears, Reaper makes a decision.
Unfortunately for Nightmare, that decision comes in the form of three former assassins being handed to him as a wedding gift for a ceremony that isn’t even his.
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Dust goes to Error's house and they have sex. Dust got permission from Ink first before doing allthat.
Series
- Part 4 of Kick The Bucket
- Language:
- English
- Words:
- 1,366
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 22
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"We are strangers, you and I,
What makes us different from who we once were and will never be?
We are no longer the same, it is a fact,
So why does the pain remain the same?"★ ★ ★
Error has spent his life trying to forget Ink, the one he once believed was his everything.
Now, nearing his 30s, he is ready to fulfill a promise that will finally allow him to leave the past behind. But fate has other plans, and an unexpected reunion could either rekindle the flame or destroy it all.
Nothing is as it seems, and a secret kept for years could rewrite their entire history.
Will the love that once bound them be enough to heal old wounds?
Or will they continue to pretend they are strangers?
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"Somos desconocidos tú y yo,
¿qué nos hace diferentes de lo que alguna vez fuimos y nunca seremos?,
ya no somos los mismos, es un hecho,
¿entonces por qué el dolor sigue siendo el mismo?"★ ★ ★
Error ha pasado su vida tratando de olvidar a Ink, con quién alguna vez creyó tenerlo todo.
Ahora, casi a sus 30 años, está listo para cumplir una promesa con la que finalmente dejará atrás el pasado. Pero, el destino tiene otros planes y un reencuentro inesperado podría avivarlo o destruirlo todo.
No todo es lo que parece y un secreto guardado durante años podría reescribir su historia.
¿Podrá el amor que una vez los unió sanar las viejas heridas?
¿O seguirán pretendiendo ser desconocidos?
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Again. And again. Cross continued to press no further than what felt like mere millimeters into him. He wasn’t even breaching the folds of his inner lips at this point! If anything it felt like he was growing more and more shallow as time went on- if that was even possible at this point. Was he really that intent on making him beg? No way.
Killer squirmed once more, arching his back to press into Cross in a silent plea, desperate for more. The action usually spurred the soldier on yet he was doing everything but the norm this time around. He groaned into his fist, biting into the fabric of his fingerless gloves when it brought nothing more than Cross’s pulling away and backing off for the umpteenth time.
It wasn’t uncommon for Killer to tease the group’s easiest member: grinding on him in the common area, just-so-happening to be nude every time Cross came to his room, whispering sweet nothings into the side of his skull while casually tracing the outline of his bulge, all while Cross begged every deity imaginable to please- please- let him focus on whatever task he was supposed to be doing. For Killer it was a fun little game. For Cross it was hell, and what Killer did next was just crossing the line.
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Ink goes to Cross' house to watch a movie and stay the night over at his house. When he's about to go to bed, Killer enters his bedroom after he played Mario Kart and fucks him (WITH CONSENT!!!). Cross eventually joined the 2 of them when he saw what they were doing.
This is the version where it's Ink's POV instead of Error's!
Series
- Part 2 of Kick The Bucket
- Language:
- English
- Words:
- 2,298
- Chapters:
- 1/1
- Kudos:
- 3
- Hits:
- 102
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While Ink is out for the night in Cross's house, Dream decided to head into his home to see Error to form a secret affair with him that their partners won't have to know about. Or will they? Along with that, Dream makes sure Error is ok with certain stuff going on and stopping if he needs him to.
Series
- Part 1 of Kick The Bucket
- Language:
- English
- Words:
- 1,863
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 109
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Summary
A rewrite of a previous fic, changed structure and story and more Sans' to have sex with.
Years have passed since the barrier had fallen and freed the monsters. You had your found family with them, Sans in particular being your best friend and support. You heard of SOULmates and how monsters have them, you wondered yourself if humans also had SOULmates, and you find out as you begin to travel through different Undertale AU's just how SOULmates and SOULs work through the multiverse.
*I DON'T USE Y/N*
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Phoenix was loving, caring, trusting and kind...until the world destroyed her inside and out. Now, she just wants the pain and suffering to end. she wants to be at peace. suddenly, Phoenix and her two cousins were thrown out of their reality and given another chance.
Sans and the other's knew they fucked up when two human woman were on the ground unconscious and the other woman, as scarred up as she was, stood on shaky legs between them with a nasty dead glare.
"What the fuck.."
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Will Phoenix finally be safe?
Will these skeletons earn her trust?
Or will they Judge her like all the other humans? -
After a Long Days Work by AspringAuthorSQ for SkeleZombie
Fandoms: Undertale (Video Game)
09 Jun 2026
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Your Mate has been spending more time at work.
Past the exhaustion, he hardly has the energy to meet certain needs of yours.
You know just how to get what you want. -
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You are the lead singer of Mili, an up and coming band you formed with your long time friends. You’re finally at your next chance at a record deal when you’re once again turned down. Desperate for help, your manager cashes in for a favor and enlists Mettaton’s aid. With a single signature you’re thrust into the world of monsters.
Now you’re being taught to dance by a prima donna robot with an unexpected and freshly internet famous dance partner: The tall, handsome, and destructively talented Desperado who starred in the internet’s newest viral video. While your life has altered significantly with your new role in Mettaton’s dance routine, Papyrus is a beacon of sunshine that keeps your spirits up. The two of you click instantly, and you become fast friends…
If only his older brother felt the same.