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1. M.F.E.O. (Mutated For Each Other) by twowritehands

   Fandoms: The Fantastic Four: First Steps (2025)  

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

   25 Feb 2026

   Tags

   • No Archive Warnings Apply
   • Ben Grimm/Johnny Storm
   • Ben Grimm & Reed Richards
   • Ben Grimm
   • Johnny Storm
   • Reed Richards
   • Not Actually Unrequited Love
   • Mating Cycles/In Heat
   • Friends to Lovers
   • First Time
   • Blow Jobs
   • Large Cock
   • Cervix Penetration
   • Mpreg | Male Pregnancy
   • Posted Complete

   Summary

   Ben experiences a change to his rocky anatomy. He has a new mating cycle... and Johnny Storm's mutation makes him the only person who can help.

   Language:

   English

   Words:

   7,621

   Chapters:

   4/4

   Comments:

   3

   Kudos:

   9

   Bookmarks:

   5

   Hits:

   230