I was coming up with some scenarios for my game idea, Cuck or Fuck. This one has Mina losing a jerk off challenge to her first rival...

Blake teases her GF Yang, only to find her younger sister isn't the "little" one anymore..!

Nagatoro calls an art club meeting to tease her Senpai with a futa potion for their president, only to find that futas are always bigger..!