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1. What Are Friends For? by short_bc_of_coffee

   Fandoms: Undertale (Video Game)  

   • Explicit
   • No Archive Warnings Apply
   • M/M
   • Complete Work

   20 Aug 2026

   Tags

   • No Archive Warnings Apply
   • Flowey/Papyrus (Undertale)
   • Flowey & Papyrus (Undertale)
   • Flowey (Undertale)
   • Papyrus (Undertale)
   • Weird Biology
   • Soul Sex
   • Bone sex
   • Plant sex
   • Tentacle Sex
   • Kinda
   • Light Dom/sub
   • But they're both switches
   • Switch Papyrus
   • Switch Flowey
   • Friends with Benefits
   • how do I describe this??
   • Vine Play
   • Loss of Virginity
   • from both ends
   • normal ass dude Papyrus
   • like he's a grown man and acts like one
   • Bratty Flowey
   • but we don't explore that
   • Safe Sane and Consensual
   • I wrote this in one sitting and barely proof read it
   • I just needed to get the brainworms out
   • Author Is Sleep Deprived
   • The Author Regrets Nothing

   Summary

   "What are you thinking about?"
   "Nothing," Papyrus insisted again. "Nothing of interest to you."
   "Everything about you is of interest to me," Flowey said without missing a beat.
   Papyrus blushed harder. "Surely not everything."
   A vine wrapped around his arm. "Of course, everything. You're my best friend, right? Don't best friends know everything about each other?"
   "Ngh..." Well... Papyrus guessed. It did seem that way with the best friends he'd seen. He knew some people even kissed their best friends; surely this wasn't too different. Still, he couldn't bring himself to say it outright. "I was... thinking about sex."

   -

   Or, Papyrus tries to figure out how Flowey would have sex...

   Language:

   English

   Words:

   2,781

   Chapters:

   1/1

   Comments:

   12

   Kudos:

   80

   Bookmarks:

   11

   Hits:

   585