The Main Character's Sister.

There in the door way, Jane looked on with an expression of complete shock. John glances up to see this, for a moment ceasing her efforts to self insert. This silent moment of the two staring at each other is broken by a soft *pop* as the head of the penis frees itself from the quivering moist snatch.

Jane, is a relatively cute girl. As mentioned before, she is 18, and just started university. She has a slight build, standing 5 foot 4 and weighs only about 125 pounds. Mid-length brown hair falls just past her shoulders with the gentlest of natural waves in it. Her frame has a thin waist, hips that are only just as wide as her shoulders, a perky and present but not large butt, and equally perky B-cup breasts upon her chest. She exercises but avoids workouts she thinks might make her look muscular. Most importantly though, compared to John, she seems to actually have her life together. She doesn't hold this against John though. They don't have the same sibling rivalry one might expect mostly do to her almost feeling bad for her older sibling. Still, despite her actively trying to be kind to John, when you walk in on someone you feel sorry for, fucking themselves you can't help but feel some level of disgust.

"John, what the hell, pervert? At least close the door if you are going to fuck yourself silly," Jane groans as rolls her eyes and grabs to door nob to close the door. Then yelling through it she finishes, "And maybe try to get a boyfriend if you want you pussy stuffed that badly."

"That's right," John thought to herself, "she thinks I have always been like this."

But with the door closed the interaction between the two siblings might not be complete. How do they react to the situation?