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1. The ABC’s of Intimacy by SinMama

   Fandoms: Undertale (Video Game), Invader Zim, Villainous (Cartoon), SCP Foundation, Styx: Master of Shadows, Of Orcs and Men, Gravity Falls, Fallout (Video Games), Five Nights at Freddy's, Rick and Morty, Bendy and the Ink Machine, Ben 10 Series, Warhammer 40.000, Danny Phantom, Silent Hill (Video Game Series), Borderlands (Video Games), Hellboy (Comics), Serious Sam (Video Games), Destroy All Humans! (Video Game), Helluva Boss (Web Series), ULTRAKILL (Video Game)  

   • Explicit
   • Rape/Non-Con
   • F/F, F/M
   • Work in Progress

   29 Sep 2025

   Tags

   • Rape/Non-Con
   • Zim (Invader Zim)/Reader
   • Sans (Undertale)/Reader
   • Black Hat (Villainous)/Reader
   • Dr. Flug (Villainous)/Reader
   • Styx (Styx: Master of Shadows)/Reader
   • Bill Cipher/Reader
   • SCP-049 (SCP Foundation)/Reader
   • Almighty Tallest Red/Reader
   • Almighty Tallest Purple/Reader
   • SCP-682 (SCP Foundation)/Reader
   • John Hancock (Fallout)/Reader
   • Vincent the Purple Guy/Reader
   • Purple Guy/Reader
   • Vincent (Five Nights at Freddy’s)/Reader
   • Rick Sanchez/Reader
   • Bendy (Bendy and the Ink Machine)/Reader
   • Nightmare sans/reader
   • Ben Tennyson/Reader
   • Tak (Invader Zim)/Reader
   • Tak/Reader
   • Sizz-Lorr (Invader Zim)/Reader
   • Professor Membrane/Reader
   • Dr.Bright/Reader
   • SCP-096 (SCP Foundation)/Reader
   • SCP-035 (SCP Foundation)/Reader
   • Lord Trazyn/Reader
   • Pyramid Head (Silent Hill)/Reader
   • W. D. Gaster/Reader
   • Handsome Jack (Borderlands)/Reader
   • Hellboy (Hellboy)/Reader
   • Crypto (destroy all humans)/reader
   • Bender Rodriguez/Reader
   • Blitzo (Helluva Boss)/Reader
   • Moxxie (Helluva Boss)/Reader
   • V1 (ULTRAKILL)/Reader
   • Sans (Undertale)
   • Zim (Invader Zim)
   • Black Hat (Villainous)
   • SCP-173 (SCP Foundation)
   • Styx (Styx: Master of Shadows)
   • Bill Cipher
   • SCP-049
   • Invader
   • Vincent (Five Nights at freddy’s)
   • Nightmare Sans (Dreamtale)
   • Ben Tennyson
   • Tak (Invader Zim)
   • Professor Membrane
   • Jack Bright
   • Zap (Overlord - Truimph Video Games)
   • W.D Gaster
   • Hellboy (Hellboy)
   • V1 (ULTRAKILL)
   • multi fandom

   Summary

   [Due to tag limit, your favourite character may or may not be in this, best check the tag index, if not, why not give a request?]

   An A-Z list of things that’ll be talked about as informative information on the sexual intimacy of characters.

   Curious how a character may be in bed? Come here to request a character you’re curious about or just see all the other characters I already have written.

   See how your favourite character is during intimate moments and more! If you're looking for something fluffier, check out the ABC’s of Lovers. If you're looking to request something specific like a oneshot/smut/fluff, check out SinMama’s Collection of Smuts and Oneshots.
   

   Series

   • Part 1 of ABC’s of Everything

   Language:

   English

   Words:

   66,154

   Chapters:

   55/?

   Comments:

   414

   Kudos:

   2,938

   Bookmarks:

   176

   Hits:

   149,477