“Battle Fuck” is a competition where a man and a woman perform the ultimate sexual techniques in the ring to bring each other to climax. Violence is prohibited; the winner is the one who uses sexual techniques to drive their opponent to ecstasy or cause them to lose the will to fight. [Immortal Togo] is the strongest S-class man, possessing a bottomless, insatiable physique. His next opponent in the ring is a pair of women ranked below him—an A-class and a D-class fighter!? There’s [Poisonous Spider] Natsume, an A-class fighter with incredible caressing skills, and [Cow Girl] Misono, a D-class rookie who, due to her lack of experience, can’t even handle her own massive breasts. “I’ll thoroughly milk you dry until you’re consumed by the aphrodisiac of pleasure and wither away.” Though they’re supposed to be lower-ranked opponents, their skillful teamwork allows them to overcome the gap in strength and physique— On a ring swirling with heat, a steamy sex battle where they clash with their masterful sexual techniques!!
More here: https://www.dlsite.com/maniax/work/=/product_id/RJ01572611.html