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1. Public Bookmark 19

   SMUTFIC: Summer Sauna Fun by TacitlyLeaps

   Fandoms: Undertale (Video Game)  

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

   27 Dec 2015

   Tags

   • No Archive Warnings Apply
   • Asriel Dreemurr & Frisk
   • Asriel Dreemurr
   • Frisk (Undertale)
   • Smut
   • Kinky
   • Kinky sex
   • Erotic magic
   • Perverse Magic
   • Anal Sex
   • Adopted Sibling Incest
   • Sauna
   • sauna sex
   • Not good for the SOUL
   • Tongue Fetish
   • WORSHIP!
   • Foot Fetish
   • Transformation
   • musk
   • Sweat
   • Collar
   • Master/Pet
   • Liquorice
   • Face-Fucking
   • Oral Sex
   • Rough Oral Sex
   • Desperation Play
   • Multiple Orgasms
   • Humiliation
   • Corruption
   • Orgasm Delay/Denial
   • Demon Asriel
   • Edgy Asriel
   • God of Absolute Hyperdeath
   • Write Drunk Edit Sober
   • Write Drunk Let Your Friends Edit 7 Hours While You Sober Up

   Summary

   The now-adult Asriel and Frisk are spending some quality vacation time at a lakeside summer cabin and things get kinky because Asriel can't handle some brotherly banter like an adult. Cue Asriel slipping into his edgy God of Hyperdeath form to torment Frisk throughout the night.

   Things get really weird. It might be a good life decision to check the tags before reading further.

   You have been warned.

   Series

   • Part 2 of EXPLICIT: Tacit's Lewds, Undertale

   Language:

   English

   Words:

   13,941

   Chapters:

   1/1

   Comments:

   13

   Kudos:

   100

   Bookmarks:

   19

   Hits:

   14,431

   Bookmarked by Catstar123

   03 Dec 2025