>>54500881>Is it like the adrenaline kick of overpowering someone else?It's this. Most rapists are motivated by this as well.
In the case of this specific guy, he may also think it's easy to get away with it since he's a foreigner with no ties to this community.
>Are they deluded enough that they think the girl will like it?There are actually some people who think like this, though. I remember hearing about one serial rapist who always gave his victims oral because he genuinely believed they enjoyed it and wanted to be raped. He was pretty obviously mentally ill, to the point that after realizing what he did was wrong, he said he never wanted to leave prison because he was 100% sure he'd do it again anyway.