Hydroxyapatithe
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hydroxyapatite.bsky.social
Hydroxyapatithe
@hydroxyapatite.bsky.social
380 followers 130 following 330 posts
Ace but 🔞NSFW🔞|20+|
🧵↓ | Bottom Error Propagandist
Minors DNI
I’m so sorry if you’re just here for Tenna, you’re getting skeletons too
(Somebodies nsfw account)
Posts Replies Media Videos
hydroxyapatite.bsky.social
The glitches have been running around in my head lately…..

Inspired by Destiny_Of_A_Dragon’s fic “Day 11: Spit-Roasting/Voyeurism“ (which you should go read because orrrorrogh,,,,, it’s so good,,,)

#utmv #errorsans #fatalerror #genosans
Fatal, error, and Geno all sitting on a couch, squishing error. Error looks a bit uncomfortable while Fatal wraps an arm around him and Geno puts a hand on his thigh
November 11, 2025 at 10:59 PM
hydroxyapatite.bsky.social
Bone study based on an image I saw on Pinterest
#errorsans #utmv #nsfw
This is where boys like you belong
November 11, 2025 at 10:51 PM
hydroxyapatite.bsky.social
The chainsaw man movie was really good….
#utmv #swad
Swad in lingerie, sitting staring at the audience
November 8, 2025 at 7:09 PM
hydroxyapatite.bsky.social
Ink’s gotta get his references somehow

#utmv #nsfw #errorberry #insomnia
Ink: tell him he’s doing a good job. He likes that
October 31, 2025 at 1:48 AM
hydroxyapatite.bsky.social
REVEAL!! I’m a few days late but I was paired with the lovely @necropathy.bsky.social for the big bone event!!

PLEASE come read their fic here it goes hard archiveofourown.org/works/712675...
#utmv #swapdream
Nox and sol chilling beneath the tree, sol is fidgeting with a golden apple (ooooooo foreshadowing ooooooo) Dream, having thrown a punch seeming shocked by it Ink looking at the camera, a little upset but holding it together Dream placing his hand ominously on the back of Sol’s neck
September 26, 2025 at 10:44 PM
hydroxyapatite.bsky.social
(TW: Blood, carving) i also got the opportunity to work with the wonderful @coffeepupy.bsky.social on the #starcrossedeclipse zine!! (Which you should read on the zine, it looks so cool on the zine) but can also be found here archiveofourown.org/works/712811...
Swad carving a large apple blossom picture into swans stomach, womb tattoo style
September 24, 2025 at 12:44 AM
hydroxyapatite.bsky.social
I also got paired with the incredible @acousticmeatus.bsky.social for #starcrossedeclipse
(Which you should read on the zine) but you can also read here!!
archiveofourown.org/works/71220371
Swad
September 23, 2025 at 7:30 PM
hydroxyapatite.bsky.social
I got a chance to work with the lovely @esino.bsky.social on the
#starcrossedeclipse zine!!

Please come read their fic it COOKS
archiveofourown.org/works/71267516
Dream holding Swad’s cock, looking very smug about it
September 23, 2025 at 4:53 PM
hydroxyapatite.bsky.social
Now in visual form :D
#errorink #errorsans #inksans #utmv
Error sucking Ink’s cock, in accordance with the fic
September 3, 2025 at 4:15 PM
hydroxyapatite.bsky.social
I think that nightmare’s tentacles are shockingly underutilized
#errormare #utmv #nsfw
Nightmare: you’re doing remarkably well Error: *unintelligible noises*
August 31, 2025 at 5:18 PM
hydroxyapatite.bsky.social
BARELY ON TIME but my submission for #icecreammare !!!

I don’t know if magic shell is an American thing but it + peppermint ice cream is incredible and you should all try it
Name tag says hydroxyapatite and flavor card says peppermint bark
July 31, 2025 at 11:29 PM
hydroxyapatite.bsky.social
Is this a threat??? A warning??
Your Result: Dead/Going To Die You're just a little too likable to live. From the moment you were introduced, we all knew you were a goner, not matter how many wanted to keep you. You are the subject of so, so, so many fix-it fics written by crying fans who just want their blorbo back, but you're still dead in cannon.
July 31, 2025 at 7:31 PM
hydroxyapatite.bsky.social
Assorted doodles n scraps
#deltaruined #spamtenna
Tenna and spammy frotting Rando: Mr ant tenna? Tenna: yyyYES!! HAHA ILL BE ON IN TEN MINUTES JUST— Tenna: ffuck where—where’d he gooooo.. Company party Spamton: oh my god are you getting off on this? Tenna: NO!! [lie] Extra text says got too excited and got tangled
July 28, 2025 at 12:53 PM
hydroxyapatite.bsky.social
And yes I am still doodling Ink being extraordinarily handsy
#utmv #nsfw
Ink: you havin fun? Error: *unintelligible noises* Ink: I’ll take that as a yes Ink in error pants while he’s on blues lap. Blue is doing his best to look away Ink with his hands up errors shirt Ink: lol
July 23, 2025 at 4:43 PM
hydroxyapatite.bsky.social
Everyone finding out they share the same top
#utmv
STOP TOP SHAMING Pound anyone today? lol be a real man You’re a top Top! Idiot Ur just a penis Tops have no talent
July 23, 2025 at 2:00 PM
hydroxyapatite.bsky.social
They are growing like weeds in my mind
#deltaruined #spamtenna
Spamton: I thought you preformed BEST under pressure?
July 23, 2025 at 12:49 PM
hydroxyapatite.bsky.social
Hand warmup I might finish later
#deltaruined #tenna
Tenna, a little ruffled and being pulled by his tie with a massive boner in his pants
July 13, 2025 at 8:51 AM
hydroxyapatite.bsky.social
It’s #royaul2025BigBang time!!! So here’s a piece based on @solsticeco.bsky.social ‘s fic ,which you can read here!!

archiveofourown.org/works/671163...

#royaul #nsfw
Killer, sitting in a garden relaxing a little
July 4, 2025 at 9:07 PM
hydroxyapatite.bsky.social
Doodle dump of some older stuff again
#utmv #errorberry #errorink
Error: B-blue..? When-whenja get ere? Blue: er, how much of that have you had? Error: d-does it matter? Error: c-cmon~ why don’t we..? Yer—yer mmmmy favor-ite, didja know that? I-I wanna—c’mooon don’t make me say it~ Extra text says Blue’s self control and shows a picture of a stick snapping Ink: you wanna? Error being manhandled by ink and blue
June 18, 2025 at 8:11 PM
hydroxyapatite.bsky.social
And I shall devour
Ink eating a piece of paper
June 12, 2025 at 7:27 PM
hydroxyapatite.bsky.social
I am still drawing them though
#utmv
Intent to fuck. Swad being fascinated by errors tongues
June 12, 2025 at 3:29 PM
hydroxyapatite.bsky.social
How it started
#deltarunespoilers
Error: can you play undernovela while we do it? Tenna: yes. Even the new seasons.
June 12, 2025 at 12:50 PM
hydroxyapatite.bsky.social
The TV and his no.1 fan #deltarune #utmv #Errorsans #deltarunespoilers
Tenna: Thank you for watching! Extra text: Does NOT know how it escalated to this point (arrow pointing at Error)
June 9, 2025 at 3:02 AM
hydroxyapatite.bsky.social
Orrrrough,,,,them,,,
#errorberry
Error: im—ah! I can only…I can only do one— Blue: that’s—! That’s fiIIINE—!
June 2, 2025 at 5:20 AM
hydroxyapatite.bsky.social
Happy pride
#utmv #undertail #errorberry
Blue and Blueberror kissing Blueberror: Aw, does someone not like being left alone?
June 2, 2025 at 4:09 AM