At a certain lingerie buyback shop in Tokyo, women desperate for cash come to sell their worn underwear or uniforms. The shop owner takes advantage of their weakness, taking photos as proof of wear and even filming sex videos. "Wow, what a great figure!" The owner comments on the woman's massive breasts, which are so big they look like they're sitting on the sofa. "I can't help but stare at your boobs, what size are they?" "They're a K cup now," she replies. A K cup is bigger than an F cup... it's impossible to measure. "Wow, that's rare. Can I see them?" She takes out a sheer thong from her bag. "It looks expensive, but I can't buy it without proof of wear," the owner says. "This won't do?" she asks, disappointed. "If you're wearing it now, I'll buy it," he offers, striking a deal. When she lifts her blouse, her heavy, massive breasts are revealed. He snaps a photo while she's speechless. Then, he asks her to remove her skirt and takes more photos, adjusting her thong as he goes. "It's so clean," he remarks. "I just changed it yesterday," she explains. "If you masturbate here and leave some stains or fluids, I'll pay even more," he suggests. After some negotiation, she agrees to masturbate right there. On the sofa, she spreads her legs and starts rubbing her thick pussy with her fingers. "Mmm... ah... ah..." She moans as she reaches climax, and he checks for stains. "The stains aren't enough. Here, use this," he says, handing her a vibrator. He attaches it to her clitoris and rubs it vigorously, making her tremble. "Ah, I'm cumming!" she cries out as she climaxes again. Satisfied with the stains, he agrees to buy the lingerie and takes more photos. "You're pretty kinky, and you're very sensitive. Why don't we film a video?" he asks. "What?" she exclaims. "I'll keep your face hidden, and I'll pay you cash right away," he tempts her. Unable to resist the devilish offer, the voluptuous woman agrees, and the cameraman arrives to start filming. From behind, he grabs her massive breasts and squeezes them, feeling their weight in his hands. "Ah..." she moans as he stimulates her nipples, which react with every touch. "You're so sensitive," he observes. He guides her hands to her breasts, spreading her thick pussy and teasing her clitoris with his fingers. "Ah, don't do that there..." she pleads as he makes her clitoris swell and her pussy become wet. He continues to tease her with his fingers and a vibrator until she climaxes again. "Ah, I'm cumming!" He lets her hold his cock and guides her hand to perform oral sex. "What do you want to do?" he asks. "I want to lick you," she replies. As she masturbates herself while giving him oral sex, her voluptuous body convulses with pleasure. "Please suck my cock," she begs. He positions himself normally and rubs his cock against her pussy, making her moan. "Please go deeper," she pleads. He inserts his cock deep into her thick pussy and thrusts vigorously, making her body tremble as she climaxes repeatedly. "Ah, I'm cumming!" He flips her over and positions her in a cowgirl position, thrusting into her firm, massive ass. "Ah, I'm cumming!" she cries out as he continues to thrust. He then pulls her back onto the sofa, positions her in a rear entry position, and thrusts into her while squeezing her massive breasts. He flips her over again, facing her, and wraps his arms around her voluptuous naked body, sucking on her breasts while thrusting into her pussy. "Ah, I'm cumming!" she moans as she climaxes again. He kisses her passionately and positions himself normally. He watches her body sway as she squirms, then thrusts into her with all his might, cumming inside her. "This is going to sell!" he thinks, feeling the resistance and knowing he's captured a highly desirable erotic video featuring a voluptuous woman. He wipes the cum off with a tissue and the assistant stimulates her nipples. "Your breasts are so heavy," he remarks. He squeezes her massive breasts and rubs her clitoris, making them twitch. "Can I see your ass too?" he asks. He massages her perfectly shaped ass and rubs her swollen pussy. "Can you lick it for me?" he asks. She takes his cock in her hand and performs oral sex on him. He thrusts into her with all his might, making her climax again. Her breasts, ass, and lingerie are all big, and she's become a top seller among fans of voluptuous women.