Fourteen years into marriage, she's a voluptuous, J-cup busty housewife living in Shirokane-dai, with a husband who's a dermatologist running his own clinic. Her night life with her spouse has been nonexistent for quite some time now, and she claims her only sexual experience has ever been with her husband—though that soon becomes questionable. Checking her lingerie, the sight of areolas spilling out from her bra immediately draws attention. "I've gained a little weight, so today I came to check on my bra fit," she explains. Moving on to her panties, she's inspected with slightly suspicious eyes. "There's no video recording, so it's fine," she reassures. "For audio only, you don't need to get so close..." "Is this sweat?" "I've been wearing them all day, so of course I sweat." "Maybe sacrificing some water resistance for better breathability?" She speaks knowledgeably about fabric features. When tested with a vibrator, she responds eagerly: "How does it feel?" "My body is getting warm." "Can we try the next one? The one you put inside?" Clearly enjoying herself. This has long surpassed a simple lingerie check—she's now asking, "Should I suck your cock?" "My body's already on fire," as she greedily takes another man's cock into her mouth. Then, using the excuse of a survey: "Let's call this part of the questionnaire," she suggests. "Shall we continue the survey at a hotel?" "It's research, after all!" Off they go. Arriving at the hotel, she strikes a provocative pose. "You know, we were doing the survey like this earlier—you're the one who lit the fire," she jokes. "As long as the underwear absorbs moisture and dries quickly, it's good," she comments warmly. Under the guise of the survey, she's stimulated repeatedly with a vibrator and dildo, climaxing over and over. "Tell me more things my husband would enjoy," she asks, then proceeds to give a blowjob and titty fuck to the "survey tool," now fully erect. Is it really true this woman has only ever been with her husband? When attempting to enter her in missionary—the position she claims to prefer—she protests: "Ah, no no, etiquette first! Only my husband is allowed inside!" Surprisingly strict. But once penetration happens, even slightly forced, she twitches and spasms instantly. "Wait, slow down... if you go in too fast, I need to adjust slowly," suggesting she prefers slow, gentle sex. Whether cowgirl or doggy, her rhythm remains slow and deliberate. Returning to her favorite missionary position: "Can we finish together?" "Come together with me—ahh, I'm cumming, cumming, cumming!"—ending in a creampie finish. "Something warm... ehh, no, you didn't use protection!" she scolds, briefly angry. But then: "Since we're here, can I get one more shot?" "Ehehehe, this is special," she giggles, smiling brightly. This time, both reach explosive, simultaneous orgasms, her big breasts jiggling wildly. "If surveys are always like this, I'd love to help again. Ehehe."