HUNTC-256 Why do I end up feeling this way with such a crude expression? *Inner thoughts* If I keep teasing my extremely shy younger sister-in-law every day, she becomes incredibly sensitive and climax-happy! 3 To the perverted girl…

Assuming my extremely shy stepsister would never tell our parents, I carried out a teasing campaign by secretly touching her over and over day after day. At first, she resisted and felt embarrassed, but with the repeated teasing she became extremely sensitive and easily aroused, transforming into a lustful girl who would react intensely to even the lightest touch. Once she had been conditioned this far, taking things further became easy. After spending the day teasing her relentlessly, I would then have my way with her, and my stepsister ended up completely under my control. Rather than making an effort to find a girlfriend, it was far easier and more satisfying to develop the nearby stepsister I already had.