I guess I should clarify since you bring up a good point, even if a bit incorrect, and even if you feel the need to throw a cringey tantrum about it. I think the MC goes through with the act because he already knows she's about to hurt him and she was clearly about to assault him anyway.
Did the MC order her to pin him down, undress him, and then pull out his dick? No, he didn't. She did this before he said anything to stop her. After he told her to suck it because he found out his voodoo powers had some affect on her (which felt weird as fuck given the situation he was in), she bit his dick, drew blood, and then blamed it all on him. She then lies about biting him. I like how you completely ignore everything else I said, as well, as if my only complaint about this game was this single scene, but I understand you need it to be because it's your only "gotcha" moment. But anyway, keep spamming emojis and throwing around buzzwords like "incel" and 4chan" like some sort of underage reddit cringelord because you're mad that people disagree with the direction of a porn game you're obsessed with.