1 - 20 of 1,930 Works in Ecto-Penis (Undertale)
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Summary
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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It's your birthday and you want to try a new position with your Soulmate Sugar. It goes well until you lose strength in your muscles. Good thing Sugar is strong enough for both of you.
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What's worse than going to prison for a couple of years?
Falling to an underground hell that appears to be mid-famine.
Why is this skeleton so intent on seeing your boobs???
(Sue me, I'm bored)
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Bewitched, Bothered, and Bewildered by CrimsonAndCloverOverAndOver
Fandoms: Undertale (Video Game), Mafiafell - Fandom
04 Jul 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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Prompt: Breeding/Family Planning
Synopsis: Papyrus and Stretch have been married a while now, and things are GREAT! It's just...Papyrus thinks...they could be MORE great, you know? With...an addition to the family.
Or: let's knock Stretch up, thanks
Series
- Part 1 of Papyly Stuff
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There are Twice as Many Stars as Usual by pessimistic_frog
Fandoms: Undertale (Video Game)
02 Jul 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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Killer has something to tell Horror. Something very important that he hasn't had the courage to really say before.
(Royaul)
Series
- Part 75 of War on Love (Royaul AU)
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kissing and hope they caught us (I wanna show you off) by Fishie16 for Meowserling
Fandoms: Undertale (Video Game)
02 Jul 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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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?NOT OPEN ANYMORE CUZ THIS STORY IS FINIIIIIIIIIIIIIIIISHED!!!
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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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Between working at your local coffee shop, being a full time college student and saving up to move to Michigan to get away from it all, you never even considered romance for yourself. The idea of spending so much time with another person just for the benefit of physical affection just didn't appeal to you.
That was until a certain tall laid back skeleton entered the cafe you worked at and started a friendly conversation. You didn't think much of the interaction, until he kept come back just to see you...
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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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They have sex
- Language:
- English
- Words:
- 2,842
- Chapters:
- 1/1
- Kudos:
- 3
- Hits:
- 39
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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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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:
- 40
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Summary
"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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Summary
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:
- 112