LULU-433 I taught her shut-in, introverted, nerdy, big-assed, J-pop idol-type younger sister how to do lewd masturbation poses, and immediately reformed her into a submissive, squirting sex doll through piston-like thrusting. - Hinako Matsui

The first time I met her younger sister, she turned out to be a shut-in, introverted, NEET girl. Wanting to admire her defenseless, unsuspecting big ass, I paid her and got her to strike a slutty pose. Unable to resist her incredibly arousing position that emphasized her pussy, I thrust my dick deep into her slit! I made her cum over and over again with rapid-fire thrusts, giving her no chance to refuse! I transformed the arrogant, cocky nerd little sister into a well-behaved slutty masturbation toy and cummed inside her...