Gaster

Mooncatyao: Yeqingxin: Gaster Might Not Be The Best Dad. But He Tries, The Effort Matters. Look At This! That’s So Cute

Zarla-S: [Previous]Something A Little Off, Here…Gaster Always Dressed And Undressed Them, So They’re Used To Others Taking Their Gowns On Or Off. Sans In Particular Is Pretty Chill About It Since He Spent A Lot More Time In And Out Of The Tube Than

Nolen-B: My Au’s Gaster…… 两种笔刷，两种风格_(:Зゝ∠)_

Mooncatyao: [Fever] When Gaster Is Sick… Grillby Takes Care Of Him.this Is The Extra Comic About This! (When Sans Is Sick)Enjoy It~&Amp;Lt;3 Thanks @Anyo00 Help Me Check This Comic!!!

Ecstaticasusual: Gaster’s Theme

Stalga: “Ah, I Was Wondering When You’d Show Up” Aha It’s Sanster! I Was Thinking About Giving Sans A Sweat Drop, But I Wanted It To Be Clear That Gaster Is As Familiar To Sans As Papy Is, So No Sweat Drop ! S-S-Something Like That!!!!! Please

Petite-Pumpkin: Well, Gaster Can’t Really Tell Him What The Steps Are.but He Know That Sans Is A Smart Kid, And He Will Understand Somehow!

Mooncatyao: Yeqingxin: Adding To Teen Gaster Doodles(:3[」_] He Is So Cool~And Cute~~~The New Artist I Found~

Stalga: @Lildreamysoul Said:sans Is Wearing A Jacket With Brook From One Piece On It!!!!!!!!!! That Makes Me So Happy!!!!!!!!!!!! &Amp;Lt;333Yeah Dude One Piece Is My Favorite Manga!! &Amp;Lt;333 I Imagine Gaster Having A Similar Voice To Brook…. Can Be

Vickyhbx: Radiocryby-Fm: Vickyhbx: 🎵A Spoonful Of Honey Helps The Medicine Go Down~~In A Most Delightful Waaaay🎵 I Love This Colors So Much Just The Happy Goop Tooooo Here You Go. Your Own Goopy Little Honey-Filled Gaster :3Why Just Look At

Cubedcake: “Gaster? The Name Sounds Familiar But I Can’t Put My Finger On It…”

Yeqingxin: Vickyhbx: Doomfell Version Of Gaster Xdddoriginal Design From @Nolen-B他怎么这么好看啊————！！！好看啊！！！爹爹啊啊啊！

Saturnwonder: Vickyhbx: Doomfell Version Of Gaster Xddd Original Design From @Nolen-B 他怎么这么好看啊————！！！ Stunning!!

Mooncatyao: [Royal Scientist-2] Grillby &Amp;Amp; Little Sansabout The War Story [Gaster Blaster] Proofreader:@Walker14&Amp;Lt;First Part&Amp;Gt;(Previous)/(Next)[Gls Timeline]You Can Support Me On Ko-Fi ~ ☕ About Detail~

Mooncatyao: [Royal Scientist-4] Grillby &Amp;Amp; Little Sansabout The War Story [Papyrus] [Sun Or Son-1] Gaster Still Remembers Grillby’s Words…Don’t Give Up…Proofreader:@Walker14&Amp;Lt;First Part&Amp;Gt;(Previous)/(Next)[Gls Timeline]You Can Support

Qbanalras: The Innkeeper.grillby. Dark Wood Au.fire Elemental. Monster.indifferent For Humans And Witches. Friendly For Monsters.known As A Strong, Fair Warrior Who Trained Many Of Great Soldier. He Was Gaster’s Guardian For Many Centuries. During

Yesyooduck: @22O22 Sans &Amp;Amp; Gaster Blaster

Quietsilenceus: Mooncatyao: [Gaster Blaster Sans] He Is Soooooooo Cute~~~~~~~~ Idea From @Lunaka49 I Is Ded

Mooncatyao: Lunaka49: Yas…For Me..gaster Blaster Sans Look Just Like Lil Pup♥♥ So Fxxking Cute!!!!!

Yesyooduck: Doodle 1.Sans(Original &Amp;Amp; My Style) 2.Swap Sans 3,4. Gaster

Mercy-Run: Spoopy-Gaster: My Husband ( @Peachpix ) Took This Full Shot Of All The Cosplay Contestants Who Participated In @Thenoblescosplay‘s Cosplay Contest! Look At All The Amazing Costumes!! This Contest Was So Much Fun. I’m So Glad You Guys Decided

Nishimori38: Sf!(Purple) Gaster And River Person (Sorry These Two Are Just My Headcanon)

Mooncatyao: Wet-Ankles: It Was Cold Today So I Drew More Spitfire!Grillby And Gaster Part 1 Really Cute!!!!!!

Mikey-Ho: Airgeartale Doodlegrillby Help Gaster Cleaning Room And Found Out Some Research. Doodledoodle2Comic

Mooncatyao: Orca137:Gaster まとめ ① They Are Awesome!!!!!

Nonbinary-Gaster: Dongs-And-Such:some More Grillby In Undies + Various Kinks Edition B) Mmm Yes

Parknewna: I Really Enjoy Drawing Sans And Gaster!

Mooncatyao: [Suppress] Grillby &Amp;Amp; Little Sanswell~Gaster Is Coming Soon~And The New Series Will Start&Amp;Lt;First Part&Amp;Gt;(Previous)/(Next)[Gls Timeline]You Can Support Me On Ko-Fi ~ ☕ About Detail~

Mooncatyao: [Cheat] Grillby &Amp;Amp; Little Sanslike Father Like Son? Xdddddddddddonly Grillby Can See Gaster….About [The First Time] &Amp;Lt;First Part&Amp;Gt;(Previous)/(Next)[Gls Timeline]You Can Support Me On Ko-Fi ~ ☕ About Detail~

Mooncatyao: [Sansby] Grillby &Amp;Amp; Little Sansit’s Time To Tell The Truth… Just Like Gaster Did…About [Adult] About [The First Time] &Amp;Lt;First Part&Amp;Gt;(Previous)/(Next)[Gls Timeline]You Can Support Me On Ko-Fi ~ ☕ About Detail~

Blackggggum: Gaster &Amp;Amp; The River Person（As An Invisible Skeleton） Just Some Old Friends~

Thezombiedogz: Am I Allowed To Be Onboard A Hype Train That Technically Doesn’t Even Exist? Oh Well…. Here’s Some Gaster Stuff. Gave Him A Skull Thing That I Like To Call The “Master Gasterblaster” Based On The Speculation That He Was The

Mooncatyao: Tytoz: I’m Still Really New To The Undertale Fandom. I’ve Never Played The Game. But I’ve Seen Some Amazing Art And Aus That Just Made Me Fall In Love With This Really Awesome Thing.so, All Of My Headcanons For Gaster Are Really Just

Salt-Ankles: Sanninghardsans: My Gaster Oc: Stitchy And He Wants To Give @Salt-Ankles Salty A Flower,To Try And Make His Salt Go Away. You’ll Never Diminish The Salt Im Sorry It’s Fatal

Brainbubblegum: Everyone In The Undertale Fandom Interprets Those Black Dots On Gaster’s Hands As Holes In His Palms And That’s Great, But I Can’t Help But See Something Different-

Hezuart: Me, Pounding On The Bunker Doors, South Of Hometown: “Open These Doors Gaster, Or I Swear To God- “

Unparalleled-Spaghettore-Papyrus: Demengineerz: Someone Had To Do It. ((That Gaster Tho))

The-Gaster-Sans-Fusion: To All My Followers I Haven’t Greeted

Brainbubblegum: Everyone In The Undertale Fandom Interprets Those Black Dots On Gaster’s Hands As Holes In His Palms And That’s Great, But I Can’t Help But See Something Different-

Thatonegojimun: I Just… Have A Lot Of Emotions Abt Gaster Ok

Umbreeunix: Guess What I Decided To Do? Eue I Made A Gaster Battle Sprite! Oh Man I Keep Looking At It And Forgetting I Actually Made It, It Looks So Authentic Like Jeez. (Toby If You Wanna Hit Me Up For Undertale 2, I’m Totes Open To Doing Pixel Art

Ananxiousraccoon: Okay, All That Gaster Bizz Sure Is Cryptic, But For Me The Most Mysterious Thing In Undertale Is Frisks Outfit

Anadapta: It Should Be ‘Gaster Blaster Master Caster Band-Aid’, But That Wouldn’t Rhyme Now Would It. (One-Page Version.)

Thedrawingbirb: I Love Non-Existent Dr. Gaster, And I Love The Idea Of Him Being A Dadster. Though Idk How To Draw Him. I Like Him Kinda Hunched And Creepy Looking…But Then I See People Putting Him In Turtlenecks And Looking All Swish, Then I Cry.

Toxicgummy: A Buncha Gasters From The Stream~

Calypsolemon: I’ve Been Seeing Some Quality Egg Gasters On My Dash And I Have To Say,,

Rogmont: Rough, Early Doodles Of W.d. Gaster And Even A Few Teensy Doodles Of What I Wished He Looked Like As The Royal Scientist. Super Nerd! And A More Recent Bundle Of Doodles On Paper. Still Trying To Find A Comfortable Place Between Really Spooky

Moofrog: Goji And I Draw The Gayest Shit Together. I Drew Asgore, Gaster Drawn By @Thatonegojimun

Potentiallytmblr: Magypsyparty: Ok But, Gaster Blasters Are Snake Skulls. Snakes Unhinge Their Jaw To Fit In Food That Is Larger Than Their Head And Blasters Unhinge At The Same Place To Fire A Beam. O:

Toxicgummy: Gasteritis: This Is Exactly What To Expect From Me If You Ever Invite Me To A Drawpile The Fat Marshmallow And The Other Toriel Are Gumbles’ (Toxicgummy) A Gr8 Time~

Wet-Ankles: Bunch Of Draws Of Another Gaster Nicknamed “Kinkster” From The Past Month Or Two He Wasn’t Meant To Have A Personality… But Then A Certain Pumpkin Encouraged Me To Give Him One Now He’s Too Powerful

Dvusrachek: Hyper Zoanoids Genderswap Hyper Zoanoid Team 5: Elegen, Gaster, Zx-Tole, Derzerb And Thancrus.

The-Gaster-Sans-Fusion: To All My Followers I Haven’t Greeted

Drifblims: Had To Fight With Photoshop To Get The Gif To Work But Im Happy With It,, Gaster Is Pretty Cool And Also Fun To Draw!! Bigger Gif Bc Of Tumblr’s Size Restrictions Really Large Non-Gif Version

Jakei95: Xtaleunderverse: [First][Previous][Next] Support Me On Patreon! X-Tra Content And Special Gifts For Your Help! Plop Ouch, That Might Hurt X!Gaster

Chongoblog: Elasticitymudflap: Everyone Else Has These Super Cool Theories On How Chara And Gaster Are Watching Over And Helping These Two And I… Personally Have My Doubts On How Helpful They Really Are. Are They Both Marge-Ing?

Slimesurgeon: “Why Do You Wanna Fuck Gaster He Is Creepy” Buddy That’s Exactly Why I Wanna Fuck Him

Gooey-Draws-Shit: Gaster Taking Hand Jobs To A Literal Level

Pornojalka: Someone Is Like “Go Fuk Urself” N Gaster Is Like Ok

Gumsbonezone: Gaster In Heat Would Just Be Him In Constant Pain Because Of Him Being So Hornyjust A Sweaty,Hot N Sticky Mess Just Trying His Best To Get Relief He Tries Not To Fuck While In Heat Because He’ll Fuck You For Hours On End Without Mercy(He

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