One time my Sister was hiding in my closet to wait for a bit until I was almost asleep so she could scare me. Unfortunately, she didn’t know I was whackin’ it, and she jumped out to scare me right as I came, which ended up going all over her face and into her mouth. My mom heard the commotion and came into my room to investigate, and after seeing me naked and my Sister covered in my jizz, got the wrong idea. To make a long story short I now have to fuck both of them every night so they won’t tell my Girlfriend.