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1. bit my lip (like a vampire bat) by rottenboyz

   Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)  

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

   27 Mar 2026

   Tags

   • No Archive Warnings Apply
   • Shinonome Akito/Tenma Tsukasa
   • Shinonome Akito
   • Tenma Tsukasa
   • Smut
   • Fluff
   • Light Angst
   • Fluff and Smut
   • Omega Verse
   • Alpha/Omega
   • Alpha Shinonome Akito
   • Omega Tenma Tsukasa
   • Alpha/Beta/Omega Dynamics
   • First Kiss
   • First Time
   • Some Plot
   • Anal Fingering
   • Blow Jobs
   • Friends to Lovers
   • Spit as Lube
   • Biting
   • Hand Jobs
   • Public Humiliation
   • Rough Sex
   • Gentle Sex
   • Gentle Kissing
   • Come Eating
   • Multiple Orgasms
   • Orgasm Denial
   • Orgasm Control
   • Dry Humping
   • Premature Ejaculation
   • Tenma Tsukasa is Whipped
   • Shinonome Akito is Whipped
   • Songfic
   • (not really) - Freeform
   • Slick as Lube

   Summary

   “You’re…” 

   Akito gulped weakly again, and he trailed his hand down from Tsukasa’s forehead to his cheek, cupping it gently.

   “You’re an Omega… You’re going through your first heat.”

    

   ---

    

   Tsukasa and Akito meet to study for a test in the library, and Tsukasa unexpectedly presents as an Omega in front of Akito, who happens to be an Alpha. Akito couldn't just leave him sitting in the library, vulnerable to other Alpha's; he had to help his poor, incredibly attractive senior.

   Language:

   English

   Words:

   22,944

   Chapters:

   1/1

   Comments:

   9

   Kudos:

   136

   Bookmarks:

   10

   Hits:

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