Somewhere in Tokyo lies a secondhand underwear shop specializing in instant high-price purchases. Women from all walks of life come here to sell their used lingerie, some lamenting, "Once it's washed, it's all the same no matter who wore it. This is only worth 100 yen." One woman asks, "Is there any way I can make more money?" The clerk suggests, "If you add some scent or bodily fluids to the underwear you're currently wearing..." She responds in shock, "Huh? How exactly?" The answer? "If you masturbate right here and dirty them yourself, I can pay you around ×× yen." After some hesitation, she agrees and begins using a vibrator. The big-assed woman starts pressing the vibrator against her butt, her breathing growing heavier. "Haa, haa... The wetter it gets, the higher the price, right?" She moves the vibrator to her crotch. A Polaroid is taken as proof of masturbation. "You're not taking my face, right?" "Don't worry. So, how often do you masturbate?" "Um... about two or three times a week... ahh!" She nervously checks if customers outside can hear her while examining her wetness. "Just a little more. Here, use this." The clerk presses an electric massager against her pussy. "Haaaaa... This is intense." On all fours, she orgasms from the vibrator, her hips twitching violently. "Alright, take it off. This first-time masturbation-stained set will sell for a high price." The bra is sealed in a plastic bag along with the panties, already emitting a sexy scent. "We'll blur your face—how about appearing in an adult video? We can pay you around ×× thousand yen." "Wow, then I could actually enjoy a vacation. Hehe..." Such a understanding, horny woman. An assistant is quickly called and filming begins. "Don't cover your pussy." Her labia are pulled open with two fingers, the vaginal opening probed, producing lewd squelching sounds. The cameraman moves behind her, groping her large breasts and pinching her nipples. "Nnnn, no... I actually like it rough." He sucks hard on her erect nipples while spreading her labia and going down on her with intense cunnilingus. "Nnnn~ no, no, I'm gonna cum..." Her exposed clit is rubbed with fingers, then finger-fucked deeply. "Your inside is incredibly elastic." Her hips jerk as she cums, clenching the fingers tightly. "Wanna touch it?" He reveals his rock-hard big cock, and she eagerly reaches out to jerk him off. "Wow, it's huge..." On all fours, she takes the cock into her mouth. A powerful, pleasurable blowjob follows. While she gives a no-hands blowjob, he hands her the vibrator to keep masturbating. "Mmmuuu, slurp, slurp..." The lustful woman cums repeatedly while sucking the cock. "Alright, why don't you try inserting it yourself?" Sitting on the sofa, she mounts him in a face-to-face cowgirl position. "Nnnnaaaaaa..." Her tight pussy slowly swallows the cock to the base, grinding down with deep, pounding thrusts. "Ahh, no, I'm cumming, cumming..." With the cock still inside, she leans forward, letting him suck her sensitive nipples while he pounds her in missionary. He fingers her while she grips the sofa, then thrusts his cock into her just-cumming pussy. "No, I just came..." Doggystyle follows with relentless pounding, then back to missionary with vigorous hip movements. Tongue-kissing deeply, he rams the deepest part of her pussy, then pulls out and cums hard on her lower abdomen. A final Polaroid is taken—filming ends, thank you. The assistant captures her post-shoot reaction. "Can you do me too?" He exposes his lower body and she starts sucking his cock. "Just put it in, no need for a condom." The kind, sexy older sister mounts him in cowgirl position. "Nnn..." With filthy, grinding motions, she rides him hard until he cums raw inside her. "Ahh, no, you came inside?" "Please come again." "Next time, sell your underwear for an even higher price." This sharp, sexy, and adorable woman now consistently produces best-selling content.