SinnySkelle
@sinnyskelle.bsky.social
33 | She/They | An Undertail, fontcest, sanscest, UTMV fanfic writer & artist. 🔞 NSFW Content 🔞
I think Reaper sometimes notices unusual things near Geno, for example, heat from an accidental touch, in this case, steam from a temperature difference (Reaper is not as warm as Geno, so it must be very cold for steam to come out of his mouth) #Undertale #Genosans #Reapersans
#royaul cross and killer - territorial offering A gyftmas present @gyftmas2025.bsky.social for @sinnyskelle.bsky.social 🎁 ______ ※ #utmv ※ #hjworktag
Comic Fontcest Part 1.5/2 color ver.🌈(⚠️Somno/Dub-con⚠️) #fontcest #papysans #sanspapy #sansxpapyrus #papyrusxsans #Undertail
Day 3 of kinktober "Voyeurism" Sorry for the delay, it will happen again probably #sanscest #afterdeath #afterdeathcest #deathcest #reaperxgeno #reaperxgoth #genoxgoth
Colored ver🌈 Comic Day 4/5/6 Part 1/2 (⚠️Somno/Dubcon/Wet dream⚠️) #fontcest #papysans #sanspapy #sansxpapyrus #papyrusxsans #undertail
// oviposition a bunny and his eggs.... #xtalecest #liartTale
#zenduchessART #undertale #Killer #Cross #Kross #messy #breeding #ecto #fuckedsilly #wrecked #NSFW
Zen Duchess🔞 ~selfcest observer@zenduchess.bsky.social · 2y agorandom popup for @tsunaidamay.bsky.social cuz she heard Kross in the server and went "puppy Kross breeding??" and I *NEEDED* to do this. Also Killer is a cat b/c obviously. #zenduchessART #undertale #Killer #Cross #Kross #messy #breeding #ecto #fuckedsilly #wrecked #NSFW
Let's start with some old bad sans poly 🐍 treating Cross to a good time 💅 Part 1 and 2 // Oviposition, Group sex, Lamia //
i remember making this one for docan undertail fontcest sacrum lacing papysans pg 1-3 out of 6
Fontcest sans x papyrus papysans undertale nsfw undertail handjob archiveofourown.org/works/122461...
old crosspost on my mind again 🩵💜 AU where errorink is new to existence. their spaces combine and result in a long glass pane between them. they're unable to hear or reach the other, so their only means of communication is writing & drawing. ✒️ #undertaleau | #inksans | #errorsans | #errorink
more deathglitch o/ #nsfw #deathglitch #errorsans #reapersans
I am thrilled to announce the full game is now available for download! Please help us spread the word so everyone has a chance to see all the amazing work our 3-person team did! And let us know what you think ^-^! kasbaka.itch.io/checks-and-b...
Checks And Balances by Kasbaka
A short visual novel sequel to the C&B fanfic!
kasbaka.itch.io
kasbaka@kasbaka.bsky.social · last yr.Super excited to announce that all the artwork for the C&B visual novel is completed! A HUGE thank you to @hj-skb.bsky.social who was incredibly generous to donate their time and effort to this project and really bring it to life. Here's a sneak peak of the characters!
Wowie, who needs to pretend airplanes are shooting stars when you've got the real thing? This Xtalecest piece by Lia is the main piece for August in Live, Laugh, Bone Vol. 2, our 2026 Fontcest wall calendar! Our fanzine is available for preorder in our shop from July 30-Aug 27!
Hello and welcome to another - Fontcest Calendar Zine Preview !!! ✨👏🦴 This is my main piece for this years Zine! 🐠 and you can peep 👀 the other art pieces as they are featured @livelaughbone.bsky.social Pre-Orders are already open! [July 30 - August 27] #fontcest #theyowiearts
Killer goes missing comic, for #Royaul #kross #badsanspoly #killersans #crosssans #nightmaresans #dustsans #utmv #undertaleau
I was scrolling through the memes I saved like a year ago and got a terrible idea lmao #killersans #crosssans #dreamsans #kross #creamship
