An innocent or straight-laced guy gets pushed into darker sex, usually through manipulation, blackmail, drugs, magic, or a nasty power imbalance. The story vibe leans hard into the slow slide from resisting to craving it, with panels showing him giving in, getting fucked, and acting more eager and shameless each time. A lot of scenes end with the “ruined” look of total submission, messy cum, and a new appetite for being used.