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1. Wanna Bet? by AnonyMPC

   Fandoms: Original Work  

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

   03 Jun 2025

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Underage Sex
   • Original Female Character(s)/Original Male Character(s)
   • Brother/Sister
   • Original Male Character(s)
   • Original Female Character(s)
   • Brother/Sister Incest
   • Cousin Incest
   • Underage Sex - Freeform
   • dubcon
   • Bets & Wagers
   • Oral Sex
   • First Time
   • First Time Blow Jobs
   • Denial of Feelings
   • Dom/sub Undertones
   • Begging
   • Teasing
   • Underage Prostitution
   • Threesome - F/F/M
   • Originally on ASSTR
   • Written in 2010
   • Masturbation
   • Shower Sex
   • Masturbation in Shower
   • Voyeurism
   • Mutual Masturbation
   • Not Touching You
   • Just the Tip
   • Fondling
   • Semi-Public Sex
   • Implied/Referenced Bestiality

   Summary

   Mark and his thirteen-year-old sister made a bet to settle a silly disagreement over the star of a movie. If she was right, he'd be her personal chauffer. If he was right, she'd give him blowjobs for a week. He was right, of course, but as time goes on, more bets are made, with higher stakes, and Mark starts to wonder if his sister is enjoying these sexual games, and possibly even losing on purpose.

   Series

   • Part 1 of Wanna Bet Series

   Language:

   English

   Words:

   22,306

   Chapters:

   16/16

   Comments:

   44

   Kudos:

   320

   Bookmarks:

   69

   Hits:

   28,710