#undertail au

So, to me, the main building blocks of Underswap is that the characters who are swapped swap both their vibe and their place. What does this mean? Well, the place thing is easy, it just means that whenever you're supposed to meet a character you will meet their swapped counter part instead (That's why Asgore is in the Ruins) The vibes thing is a little trickier

I say vibes rather than personality for a reason, they don't swap personalities in my version of the au. Sans still loves puns, Papyrus is still a little obsessed with humans and puzzles, and Asgore still loves to garden! Their vibes are just a little different. Sans actually has the motivation to get up in the morning, Papyrus can now sit still on occasion, stuff like that. But they're still themselves, and that's what I find so fun about them

See, when you get to Snowdin town the boss you have to beat to get to Waterfall is Sans, as you may expect. But this Sans is still the Sans you meet in Undertale proper, and we all know how he can fight when he goes all out. So he doesn't!

So long as you're doing a neutral or pacifist run his fight is more like a test! He straight up tells you that he has 1 HP and any hit will kill him, so you'll need to show him how good you are at ACTing and talking your way out of fights. This is for a few reasons, but one I'll mention is that he's still really close to Toriel in this au. And some part of him wants to hope that maybe, maybe if you're skilled enough, his friend won't have to kill another human and break herself down even further

So it's a pretty easy fight, about as easy as the Papyrus fight in Undertale. He even offers to take you on a date for all the trouble, which is just as silly as the Papyrus date. But all of that is assuming that you play along

If you take your chance to attack him during the fight, he'll dodge out of the way. He'll scold you but chalk it up to butter fingers and let you off the hook. Do it three times though, and his eyelights go out. His smile drops. and he lets out a great sigh

"Huh, I don't know what I expected. Jokes on me for thinking it might be different this time I guess. Alright kid, you want a fight? I'll give you one"

And the fun little fight you were supposed to have early in the game goes full genocide run. He does not hold back, he does not show mercy, and he will taunt you about how many times he's killed you if you try hitting him again once you respawn. This Sans is VERY aware of your timeline shenanigans and unlike Undertale Sans, he has the motivation to cut your little game short before you can do any real harm

If you're doing a geno run he doesn't even pretend to like you once Pap is out of ear shot. He wants you dead, and the only reason he waits at all when he sees you step out of the Ruins covered in dust is because of how much faith he has in his brother. Surely someone as nice, and confident, and cool and Papyrus could get you to turn your ways around, right? If you were doing a geno run but don't clear out all the monsters before you fight Sans he'll have something to say about it

"Wow, look at you. Honestly, I didn't think it would work, but look at you! You've changed a lot huh? Sure, all that dust won't come out easy, but you haven't added to it since you got here. Want a medal? Look, I still don't trust you, but you've shown me there's at least some part of you that doesn't want to murder anything that moves. So I'll let you pass though to Waterfall, we don't even have to fight. Just hit that Spare button and we walk away like none of this ever happened"

Happy birthday swap/blueberries/blue!!

Synopsis: Cross is having a hard time with his anger. It’s okay, Ripper knows what to do. 

Chapter 03 is up on AO3 now

Chapter Summary: Fell drops in on Lena for a surprise visit while she's dressed for the higher temperatures. A little innocent exploration leads to a first, as well as many feelings, shared.

Read it here:  https://archiveofourown.org/works/30808286/chapters/107276580

Fandom: Undertale (Game and Characters © Toby Fox) AU: Underfell (not my AU concept, just my personal take on UF!Sans) Ships: Sans/Female OC (Lena); Papyrus & Female OC (Lena) Rating: Explicit Features: Emotional Sex; First Time Sex (not virgin); Come Swallowing; Hair Pulling; Creampie; Blowjob; Cunnilingus; Enthusiastic Consent; Body Positivity

Warnings: n/a

Fic Summary: Coming from a world where Kindness was seen as a weakness, the Monsters that emerged from beneath Mt. Ebott were still having to adjust to life on the Surface. The skeleton brothers wind up befriending a human by the name of Lena, a Kind soul who seems bound and Determined to show them that, through Kindness, all things are possible. - Basically just some loosely connected one-shots about Fell (UF!Sans) and Lena’s relationship. First one is the Confession, obviously. (Strongly considering writing their first time having sex together, as well, but unless people want it, then it’ll be after my other writing projects.)

Oh, let it be here

Hun, I love writing me some sin. No matter who it is. UwU (Plus, I love me some sinny Wine~ And Wild is just really fun to write.) ~ Goblin

Wild:

He hates his heats. He does everything he can to suppress them. He’s better than this. He can control himself! He doesn’t need to give into these urges! These... tempting urges...But then you come along and it gets so much harder. Your smell... The way your hips sway as you walk... even the gentlest of touches makes his bones feel like their on fire. He really doesn’t want to give in.You notice how odd he’s been acting, so you ask Ca$h. He gives you a basic explanation about heats and it’s most likely what Wild is going through. So you go to Wild and offer to help him.

“Are you sure?” He asks. “Like, really, really sure?” You tell him that it’s okay. Suddenly, he has you pinned on the couch and traps you into a rough kiss. He starts desperately grinding against you, moaning and grunting. God, this already feels so good...! He wants you here and now and you’ve just given him the reigns. You’re in for a wild ride.

Wine:

Over the years, Wine has learned different ways to deal with his heat. It doesn’t stop him from his work. In fact, he has a lock on his office door for a reason. He can also temporarily take care of it by masturbating quickly and quietly in his office. He also will threaten anyone who tries to disturb him while he has some quiet time. He has other ways to control it, but a quick session usually holds him off for a while. Now, if you offer to help him, he’ll want to make sure that he’s not pressuring you or anything.