Called to a hotel by her teacher, G-cup gyaru Kokoro is scolded for her provocative outfit and subjected to intense sexual guidance. Even while wearing her uniform, the teacher can't take his eyes off her massive tits, and Kokoro, a natural masochist, trembles with arousal as her breasts jiggle and her pussy throbs. The teacher gropes her huge breasts persistently through her clothes until she climaxes, watching closely as she masturbates. Her fingers move faster and faster, making the teacher's cock—belonging to a breast-obsessed pervert—harden completely. He pulls out his cock in front of her, beginning explicit instruction in blowjob and titfuck techniques. Using her soft, youthful tits, Kokoro brings him to a cumshot all over her ample cleavage. After making her clean his cock with her mouth, he gets hard again, then thrusts his large cock deep into her wet pussy, pounding her violently as her tits bounce wildly. As he gropes and licks her huge breasts, he teaches her how to move her hips. After another cumshot from titfuck, he dresses her in a school swimsuit and heads to the shower. He covers her swim-suited body with body soap, aggressively kneading her tits, making her sensitive body shiver with pleasure. Pulling her tits out of the swimsuit, he cums heavily while she performs titfuck