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1. Collision Course by bumofcentury

   Fandoms: Invincible (Cartoon 2021)  

   • Explicit
   • Creator Chose Not To Use Archive Warnings
   • F/M
   • Complete Work

   02 Jul 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Mark Grayson | Invincible/Reader
   • Mark Grayson | Invincible/Original Female Character(s)
   • Mark Grayson/viltrumite reader
   • Mark Grayson | Invincible
   • Cecil Stedman
   • Debbie Grayson
   • Omni-Man | Nolan Grayson
   • viltrumite!reader
   • Mutual Pining
   • Drunk Shenanigans
   • Drunk Sex
   • Partners to Lovers
   • Flirty
   • Reader-Insert is a Brat
   • Sexual Tension
   • Smut
   • Sloppy Makeouts
   • Orgasm Edging
   • Begging
   • Rubbing
   • Wet & Messy
   • Teasing
   • Vaginal Sex
   • I'm Bad at Tagging
   • NSFW
   • thrusting
   • Rough Sex
   • Creampie

   Summary

   A young Viltrumite is sent to Earth to observe humanity, and Nolan has Mark show her around despite his reluctance. As the two slowly grow closer, a Guardians party and a tipsy walk home lead to unexpected honesty, teasing, and the first sparks of undeniable tension between them.

   Language:

   English

   Words:

   5,642

   Chapters:

   1/1

   Comments:

   1

   Kudos:

   47

   Bookmarks:

   7

   Hits:

   761