Creampie 3 Handjob 1 An underground idol sister and her college student brother challenge a test to see if they can arouse each other for a cash prize. The production style of occasionally flashing the sister's panties during highlights and interviews becomes addictive. Though the brother exposes her extreme masochistic tendencies, the sister responds with a smile, detailing her preferences in a surprisingly open manner. The premise that they cannot view each other as potential lovers due to their sibling relationship only heightens the erotic tension. They start off confidently, but the first move is a kiss—then the sister suddenly reaches down into her brother's crotch, teasing him while saying, "You mustn't get hard!" After checking his cock, it quickly becomes fully erect, and when she starts groping his cock, he shamelessly begs, "Harder!" while her big tits are being squeezed. They grind without penetration, but the pleasure makes the brother thrust wildly, causing the sister to climax. Forgetting the prize money, the brother goes wild and suddenly thrusts his bare cock inside her. The sister protests, "This is bad! What are you doing!?" but quickly succumbs to pleasure, climaxing repeatedly. Once inside, he maintains relentless, vigorous thrusting, ignoring her pleas to stop, and cums deep inside her pussy. Despite saying "no," she then wipes up the creampie semen and licks it off her fingers before getting on all fours, sticking her ass out, and begging like a pervert, "Put it in! Hurry!" This depraved sister, on the verge of full masochistic explosion, gets spanked on the ass and climaxes repeatedly as her frenzy intensifies. The brother pounds her hard and cums inside her again quickly. Still not satisfied? The sister takes his cock into her mouth and begins an intense deep-throat blowjob, fully embracing her masochism. Then, saying "This time I'll make you feel good," she straddles him and impales herself. The depraved sister, riding him, pleads for her neck to be choked while climaxing over and over. Finally, he cums inside her once more as she writhes in convulsive orgasm. After showering, she jerks off his still-hard cock and receives his final cumshot.