1 - 20 of 71 Works in Parent Sans (Undertale)

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  1. Tags
    Summary

    Edgy x Frisk pregnancy smut

    __

    Edgy goes away for the holidays and is horrified by what he comes home to.

    Which leads up to smut, and more S M U T .

    Language:
    English
    Words:
    31,399
    Chapters:
    8/?
    Comments:
    1
    Kudos:
    46
    Bookmarks:
    7
    Hits:
    2648
  2. Tags
    Summary

    Its just a story about sans, Chara and their little cinnamon bun

    Language:
    English
    Words:
    783
    Chapters:
    1/1
    Kudos:
    2
    Hits:
    63
  3. Tags
    Summary

    Making it to the surface should have been the happy ending everyone was looking for; however, for Frisk the nightmare of what occurred underground is still fresh in her mind. Unable to cope with her guilt Frisk decides to return to the very place she was trying to escape from in the first place. Things only continue to get worse the monster fail to gain the trust of the humans and they are forced back to the foot of Mt. Ebott and a familiar dark presence begins to make itself know in Frisk’s dreams.

    Frisk will need to find the determination to defeat her demons.

    Language:
    English
    Words:
    9,925
    Chapters:
    6/?
    Comments:
    7
    Kudos:
    31
    Bookmarks:
    4
  4. Tags
    Summary

    After a scrapped timeline in which Frisk dies, she resets and heads back for round two in the underground. Only problem is, she isn't sure if she wants to return to the surface. As she overcomes her past demons, and learns to take on new ones, she quickly learns that there's one extra monster to the mix that she's never seen before. One monster who is prepared to do anything to break the barrier, and on the hunt for a live human soul.

    Series
    Language:
    English
    Words:
    26,626
    Chapters:
    8/?
    Comments:
    90
    Kudos:
    97
    Bookmarks:
    17
    Hits:
    2468
  5. Tags
    Summary

    Ancient tales told of the dangers lurking beneath the stones of Mt. Ebbott. We did not believe, we did not prepare, and we suffered for our folly.

    And then, a child fell.

    Once, there was peace.

    Once, there was understanding.

    Language:
    English
    Words:
    6,176
    Chapters:
    3/?
    Comments:
    5
    Kudos:
    27
    Bookmarks:
    5
    Hits:
    217
  6. Tags
    Summary

    After 500 years of being underground, monsters have resurfaced and began to be introduced to humanity again. PTAs bring along two bitches that want monsters to go back to where they came from. Lets see how the monsters go in this new world.

    Language:
    English
    Words:
    9,306
    Chapters:
    8/?
    Comments:
    89
    Kudos:
    82
    Bookmarks:
    5
    Hits:
    1792
  7. Tags
    Summary

    Sans is tired of the resets. He decides to do something about it to change things for the better.
    Everything just sort of goes downhill from there.

    Language:
    English
    Words:
    351,957
    Chapters:
    71/71
    Comments:
    263
    Kudos:
    231
    Bookmarks:
    26
    Hits:
    5652
  8. Tags
    Summary

    Sans x Reader

    Pregnancy smut

    Because I need it.

    __

     

    Jeeze, it was just your luck to run out of oil in the middle of winter, wasn't it?

    You had been so enraptured in your pregnancy you hadn't even realized you started running low, and unfortunately for you because of the storm no one could make it out for atleast a couple days.

    Great, just wonderful.

    Luckily for you your mate was warm and cozy, and was more than happy to accommodate you.

    Language:
    English
    Words:
    5,881
    Chapters:
    3/?
    Comments:
    40
    Kudos:
    238
    Bookmarks:
    27
    Hits:
    6858
  9. Tags
    Summary

    Sans thought he'd lost one of the people he cared about most when Frisk gave her own life to stop Chara. As he sat there, rocking the child's still form, he made a promise... one that he'd do anything to keep. Then, a tiny skeleton baby with wispy brown hair gives him the chance to make things right and Sans comes to learn the joys and pains of being a father to his little girl.

    Language:
    English
    Words:
    171,476
    Chapters:
    38/38
    Comments:
    271
    Kudos:
    598
    Bookmarks:
    84
    Hits:
    11990
  10. Tags
    Summary

    UF!Sans has given birth only a month a go to a healthy daughter, Frisk. Just one problem, she is a human. He doesn't care, she is his little star-light, he adores her. Even Papyrus is fond of her. The rest of Snowdin is not so understanding, and Sans escapes from a murderous mob to the Cursed Ruins as his brother holds of the mob. He makes it, and the Cursed Lich Gaster allows him entry. Sans is immediately smitten by the imposing Lich, but all the stories and legends of the ancient being are horrifying and told in hushed whispers to keep children in line. But surely they are not true? Sans is a bout to find out.

    Based of RP on Tumblr with @tempestjewelsin

    Language:
    English
    Words:
    109,278
    Chapters:
    20/?
    Comments:
    104
    Kudos:
    267
    Bookmarks:
    24
    Hits:
    15125
  11. Tags
    Summary

    "You should be the one I'll always love. I'll be there as soon as I can, but I'm busy mending broken pieces of the life I had before..." ~Muse

    A little skeleton finds himself with a beautiful star to hold...~

    Language:
    English
    Words:
    994
    Chapters:
    1/?
    Comments:
    2
    Kudos:
    23
    Bookmarks:
    1
    Hits:
    212
  12. Tags
    Summary

    Grillby gets a phone call from his mother, that he hasn't spoken to in years. Setting off a chain of problems to head his way. Sans and Fuku stay by his side ready to help anyway they can.

    Series
    Language:
    English
    Words:
    17,680
    Chapters:
    10/10
    Comments:
    23
    Kudos:
    98
    Bookmarks:
    6
    Hits:
    1118
  13. Tags
    Summary

    Katy is the child of Frisk and Sans (in the future).
    Because of a tragic turn of events, Sans has sent her into the past (how we presently know Undertale) to remain hidden.
    Sans thinks it is best for her to stay with present-day Sans and Papyrus, but for them to think she is just another human. Not related to them, and not half monster.

    Language:
    English
    Words:
    27,604
    Chapters:
    17/17
    Comments:
    9
    Kudos:
    52
    Bookmarks:
    6
    Hits:
    819
  14. Tags
    Summary

    Sans has a nightmare, and needs to check on someone to make sure they're alright; it's just a dream, right? Just a dream...it's all going to be okay

    Language:
    English
    Words:
    2,145
    Chapters:
    1/1
    Comments:
    2
    Kudos:
    38
    Bookmarks:
    1
    Hits:
    735
  15. Tags
    Summary

    “Why didn’t he tell me? Didn’t he trust me?!” Sobbing, Papyrus placed a hand to his mouth to muffle his sobs to keep from waking the child in the other room.

     

    “How could he do this to me?”

     

    Eight months after the birth of His and Sans’ child, Sans is attacked and placed in a coma, leaving Papyrus to discover a few secrets that Sans hid from everyone. Hurt and distrait due to Sans’ actions, Papyrus moves out of his house and out of town.There, he meets an unlikely child that has changed his life for the better.

     

    A story of forgiveness and redemption. A monsters journey to learn to forgive and heal while also being the parent of not only his own child but to a street urchin he willingly took in as his own.

     

    (Sequel to "Mr. Almost")

    Series
    Language:
    English
    Words:
    4,430
    Chapters:
    2/?
    Comments:
    5
    Kudos:
    21
    Bookmarks:
    3
    Hits:
    452
  16. Tags
    Summary

    Frisk could remember reading the translation in one of the novels in the orphanage, although at the time they were not sure exactly what it meant. But after falling into Mt. Ebott, traversing the Underground, and emerging through the newly shattered barrier, Frisk had a new appreciation of "through hardships to the stars." The monsters were slowly becoming integrated back into society and Frisk's happy ending was finally coming true. But now the demon that comes when people call its name had other plans.

    Language:
    English
    Words:
    111,977
    Chapters:
    21/?
    Comments:
    548
    Kudos:
    743
    Bookmarks:
    118
    Hits:
    16263
  17. Tags
    Summary

    Sans finds a baby…a baby human and must choose what to do from here.

    Language:
    English
    Words:
    10,859
    Chapters:
    4/?
    Comments:
    37
    Kudos:
    106
    Bookmarks:
    18
    Hits:
    1062
  18. Tags
    Summary

    Features Underfell Sans and a baby skeleton! - Sans likes to think he can handle anything that comes with a "Kill or Be Killed" world, but after discovering a baby skeleton at the Dump, he's not sure anymore. Becoming a parent wasn't exactly on his To-Do list, but he's willing to give it a shot. Besides, he managed to keep Papyrus alive! He could raise another kid, easy...right?

    Language:
    English
    Words:
    9,646
    Chapters:
    4/?
    Comments:
    6
    Kudos:
    68
    Bookmarks:
    7
    Hits:
    519
  19. Tags
    Summary

    Sans didn't expect to find the door to the ruins open. He didn't expect to find a human corpse, piles of dust, and a lone living human baby inside. He sure has hell didn't expect ending up taking care of it. What does he know about babies, anyway?

    But a promise is a promise and this one has to be kept.

    No matter what.

    Language:
    English
    Words:
    66,583
    Chapters:
    13/13
    Comments:
    466
    Kudos:
    779
    Bookmarks:
    154
    Hits:
    7376
  20. Tags
    Summary

    You are Courtney Dander an average little girl or that's what your mom would have people believe. You are actually Carileth a child succubus who cannot control her aura.

    As a result people's darkest sides tend to come out when you are present.

    You are sheltered within the hell gates never being allowed to leave by your Mom who is the ruler of Hell. When you do leave you are disguised as a ordinary girl and guarded by demons.

    Until one day you are mistaken for someone else ending up kidnapped by two kids who think you're someone else and end up falling to the underground where you are harrassed by every monster.
    You are about to give up when you meet two monsters that might just be what you're looking for.

    A family.

    Series
    Language:
    English
    Words:
    1,630
    Chapters:
    4/?
    Comments:
    9
    Kudos:
    56
    Bookmarks:
    9
    Hits:
    2422

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