Kujou-san wa Hitobanjuu Idakeru do Zetsurin: Hyouhen Danshi no Ikisugi Zetchou Technique

Saki always gets dumped by her boyfriends because of her strong sexual desire. Saki wants to feel so good during sex to make her come over and over again, even if it's just once...! But when Kujo-san, a handsome salesman at her company, overhears her true feelings, Saki is mortified. To her surprise, he tells her, "I want the same thing as you," and it was like he was transformed, as he ravished her over and over in a hotel all night. The man of her dreams is a slightly sadistic man who is an amazing lover.... A doting office love story that will make you melt!

(Source: Love Parfait, translated)