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Undertail

Spider Cider [Muffet]
Miss Muffet by lysergide
Yet, Another Monster Kid
hOI! - c1-11131
Asriel called out for help [Source + lineart in comments]
Goddess of Hyperdeath
Anybody know if there's a full version of this? (Sans, Frisk)
Goddamnit, Aplhys
My boyfriend got me a drawing tablet for Christmas. The most logical thing to do
Fem!Chara fucking an eggplant
Requested: Asriel x Toriel & Monster Kid x Undyne
Asriel x Frisk
New Pet! (Muffet) [Railroad Mejic]
You Feel Your Sins Crawling in Your Pants (CharaxSans)
Toriel (by TheWill/thelewdwill on Tumblr)
He'll take your heart, and not just on valentine's day either.
I doodled Sans today!
Toriel
Undyne doodles
Frisk and Undyne
Messy Mettaton Carryfuck
Asriel
Passion [Asgore x Toriel]
Tfw you get momwrecked
Asriel BJ (nebulatower)
Alphys masturbating (Credit to drako1997 for making these)
bepis [Asriel]
Female Frisk x Female Chara
Goat Ass [Artist: bzeh]
Muffet's new sales product
THICC Chara
I always did wonder where Toriel got that cream for her pies.
Wardrobe Malfunction
"Insert filled with determination quip here"
A wonderful spread
Undyne needs it
Blue on Blue
Undyne
Doggo and Asriel
Vulcan ಠ_ಠ
Bunny Shopkeeper
Always wondered how Toriel got all that milk for her pie.
Look, a unicorn!
Toriel doing some cosplay
Shrunk in the wash
Gote Blowjob
Presenting Assets
Muffet
Another muffet gangbang
Sneak Attack!
Sexual experimentation
Asriel touching Chara's tiddy!
Well, that's one way to defeat her
me_irl
Toriel took the wrong turn in the ruins.
Good genes
Pokies by [PWCSponson]
Metaton gender bender by WieraSkydream
Asriel + (Chara or Frisk?)
I really do like the colors SauceNAO says no source appreciated

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