So... what if I went to the Undertale Wiki and ripped every namable NPC I could find down to figure out what they would be like in Underlust? Staying as canon-compliant as possible?
Call this AU of an AU [Underlust3r] (get it? because it's, like, canon-compliant Underlust, but more in it, and thought of by me, Kamari333, so it's 3'er or 3r. UnderLust3r! I think I am funny. And also bad at names.)
I have written about:
[the Ruins] & [Snowdin] & [Waterfall] & [Hotland (1)]
The MTT Resort is an intermediary location between Hotland proper and the CORE. It is largely treated as an extension of Hotland. The MTT Resort area has the following associated Characters:
Vendors: Bratty; Catty; Burgerpants;
Undertale Overworld NPCs: Diamond Receptionist; Hand Receptionist; Sad Dragon; Shambling Mass; Business Manticore; MTT Resort Janitor; Fish Receptionist; Snowdrake's Father; Charles; Oni; Ficus Licker
Underlust Canon OCs: Mettaton's Abusers
(underlust canon-typical trigger warnings apply; mentions of fictional S.A. below the cut)
Underlust3r MTT RESORT (Hotland (2))
In Undertale, Mettaton's "MTT Resort" is a prominent location associated with Hotland. It consists of a Restaraunt, a Hotel, and a Fast Food Vendor (worked by Burgerpants).
In Underlust3r, I think it would be Mettaton's main studio where he films his Quiz show (instead of the restaurant), with a huge Library (instead of a Fast Food Vendor), and small private reading rooms that are converted to Hotel rooms in a pinch.
Underlust Tonton values and yearns to share knowledge, not necessarily for fame (and especially not for attention after his assault). While I think he would reluctantly use his resources for public good under extenuating circumstances, I think he would largely be trying to cultivate education and literacy. His Library may even double as a bookstore and movie rental service solely as a means of income (and I lowkey suspect Tonton is salty that he makes so much money that way).
Mettaton of course deserves his own post given how prominently he features in Underlust Canon, but I wanted to establish some context for these Underlust3r changes.
Vendors
Bratty and Catty
Bratty is an Alligator monster and Catty is an Alley Cat monster. They canonically dumpster dive and sell any "really good garbage" they can find.
In Underlust3r, this is largely the same, except they often scrounge up old human porno magazines, sex toys (which they only consider 'good' if they can clean them -- Alphys lectured them for several hours about that), and leftover food from the Cooking Show specials. They used to take candid photos of Mettaton to auction off, but they stopped doing that. No they aren't telling you why, piss off. Wanna hear how many burgers that librarian can fit in his butt? It's, like, more than the movie shows~
Burgerpants
Burgerpants as an Underlust character is mentioned in a few disparate tumblr posts:
January 20th, 2017 <https://www.tumblr.com/nsfwshamecave/156133593751/whats-burgerpants-like-in-underlust> where it's revealed he wants to be a porn star but only got one gig in a food fetish film where he stuck burgers in his pants.
January 20th, 2017 <https://www.tumblr.com/nsfwshamecave/156138729581/burgerpants-how-many-burgers-can-you-fit-up-your> where it is revealed he stuck 37 burgers up his ass and would not recommend it to anyone else.
January 20th 2017 <https://www.tumblr.com/nsfwshamecave/156134846426/so-if-bp-got-into-weird-ass-food-porn-and-ncg> where it's canonized that BP and Nicecream Guy will collab on weird food porn together.
I think in Underlust3r, Burgerpants is a librarian in Mettaton's Library since he can't get any jobs in porn and he needs a steady job to pay the bills. He thinks Mettaton is squandering his resources and good looks doing boring Quiz Shows when he could be staging amazing pornos. He thinks Mettaton is a bit of a prude and resents his exacting standards for his library. But... Mettaton is also an amazing boss who never requires overtime, pays for vacation AND sick days, and doesn't ask for anything outside of the job description.
Burgerpants wishes he would ask for something outside of the job description.
(I really wanna go more into my HC's about BP and Tonton's relationship but that is its own essay so I need to stop here.)
Other Overworld NPCs
Diamond Receptionist :: This is the pink and blue triangle-shape-combination monster that will greet you in the Resort in Undertale. In Underlust3r, I think they would still greet you, but warn you that the Resort is kind of boring. After all, it's mostly just (1) seating for the live viewing of the Quiz Show, and (2) a big library.
Hand Receptionist :: In Undertale, this monster explains how the elevator to the capital is not working and claims that rooms are running at a special rate. In Underlust3r, they explain that the elevators are busted, so Mettaton has converted some of the private reading rooms into hotel rooms. Kids stay free, and adults run 10g a night, but there is a 200g deposit for cleaning fees for adults. Their nails are long, except for the middle and ring finger nails which are filed down.
Sad Dragon :: In Undertale, this monster can't go home to the capital, so they stay at the MTT Resort. In Underlust3r, this is also true, but they are clearly more upset they won't be home in time for their anniversary dinner. (And anniversary sex.)
Shambling Mass :: This is the black thing with one eye and red bowtie, which expresses their emotions about Undertale events. In Underlust3r, they are still vocally emotional. "As a slime, I am frustrated. As a slime, I am aroused. As a slime, I am disappointed."
Business Manticore :: In Undertale, this monster comments on the state of the elevator in the MTT Resort (among other things they can explain). They can be seen with their luggage next to them, suggesting that they were prepared to leave before it stopped working. In Underlust3r, I think this would largely be the same. Their briefcase definitely has a few sex toys in it though. They are a part of the Royal Harem assigned in New Home. They explain things like how the Royal Harem is a public service to make sure everyone can have safe consensual sex with a willing partner, since LUST makes abstinance a health hazard, and that they really need to get back to work soon.
MTT Resort Janitor :: This is the monster cleaning their own slime out of the hallway in Undertale. In Underlust3r, they complain about what a mess everyone else is, and how proud they are not to be. They don't seem to realize they keep dripping on the floor too (theirs just isn't sex fluid).
Fish Receptionist :: In Undertale, this monster tells you the requirements to eat at the MTT Resort. In Underlust3r, they tell you the requirements (and code of conduct) to watch the Quiz Show live. They probably sound like they think the code of conduct is excessively restrictive.
Snowdrake's Father :: In Undertale, he says his son ran away after his mother passed away, that he is "a terrible fathah" and wants to have a better relationship with his son. In Underlust3r, he does standup comedy in between Mettaton's showtimes. He misses his sick wife. Since Snowdrake (probably) doesn't exist, he laments that he always wanted to be a father, even though he doesn't think he'd be good at it.
Charles :: A mole-in-a-hard-hat who works in the CORE. They love their job even if it isn't sexy. They always watch Mettaton's Quiz show live since they get free tickets as part of their job's perks. Even if the show isn't very sexy, Mettaton still is!
Oni :: In Undertale, this red oni is sick and tired of all the puzzles underground. In Underlust3r, he's still sick and tired of all the puzzles, but what really bothers him is all the exhibitionism. He respects Mettaton for being the one performer who doesn't add gratuitous sex appeal in every performance.
Ficus Licker :: In Undertale, this monster forgot to make a reservation and licks a ficus so it looks like it knows what it's doing. In Underlust3r, I like to think they show up to the live Quiz Show on accident thinking it was going to be a sexy burlesque show, and is too embarrassed to leave so he just sits to watch anyway.
METTATON'S ABUSERS
The two monsters that rape Mettaton after his initial debut are only featured in Papyton Comic Post #2 (Feb 6, 2016), #9 (Mar 16, 2016), #10 (Mar 23, 2016), and #11 (Apr 3, 2016).
They are drawn indistinct with minimal features, each one only showing one eye (on mirroring sides, with one having a left eye and the other a right eye), a mouth, and a distinctly lithe human-shape-like body. In posts #9-#11, they are depicted all in black with white linework, and red eyes with black irises and a white pupil. It is notable that they are shown to both bleed and cry in Red. (in post #2, they are depicted with dark grey instead of black, which makes them stand out more against the darker backgrounds of those memory shots.)
These monsters are, more likely than not, OCs made to serve the narrative purpose of abusers, as they don't strictly match any one other kind of canon monsters.
I've considered a couple ideas for what kind of monsters they might be in matching lore. The one I think holds the most water is the Shambling Mass like the one seen in the MTT Resort. Perhaps they are more muscular and defined Shambling Masses due to higher LUST? The color pallets match! And the proportions match. It is easy to imagine that higher levels of LT might make their shape more human-like and defined.












