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1. First Valentine's Day by BludGear (BludT9)

   Fandoms: Phineas and Ferb  

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

   14 Feb 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Heinz Doofenshmirtz/Perry the Platypus
   • Candace Flynn/Jeremy Johnson
   • Phineas Flynn
   • Ferb Fletcher
   • Lawrence Fletcher
   • Linda Flynn-Fletcher
   • Candace Flynn
   • Isabella Garcia-Shapiro
   • Baljeet Tjinder
   • Buford van Stomm
   • Perry the Platypus (Phineas and Ferb)
   • Heinz Doofenshmirtz
   • Major Monogram (Phineas and Ferb)
   • Valentine's Day Fluff
   • Rough Sex
   • Japanese Rope Bondage
   • Rimming
   • Oral Sex
   • Anal Sex
   • Multiple Orgasms
   • Human Perry the Platypus (Phineas and Ferb)
   • Triple Life Au
   • platypus to human
   • alternative universe
   • Transformation
   • Aphrodisiacs

   Summary

   Perry was planning to celebrate Valentine's Day for the first time with Heinz, but the mission ordered by Monogram ruined it. Or so he thought.

   Language:

   English

   Words:

   6,841

   Chapters:

   1/1

   Comments:

   2

   Kudos:

   16

   Bookmarks:

   1

   Hits:

   372