Shuubaku Escalation

Overview

It was supposed to be strictly professional. But now he's bound tight, losing control, and getting off at his best friend's touch... and the worst part? He loved it. Shino, an editor at a publishing company, is suddenly tasked with writing a special feature on bondage. Unable to refuse, he turns to his high school friend, a bartender named Haruka, for help. Haruka suggests visiting a specialized bondage bar for "research". Under the guise of helping with the article, Haruka points a camera at him, turning the interview into a highly charged, seductive photo shoot. Despite his intense embarrassment, the tight ropes and Haruka's intense gaze leave Shino completely aroused. (Source: CLLENN) Note: Includes one extra chapter.

Source: AniList