Bro. You don’t ask this to random people. You need to build rapport. I have plenty of times vibed with people and then told them i got the hots for them and then we did the deed. It ain’t too hard. Just be clear and upfront and make some vibe checks.
OG Nazis experienced the same thing. Killing people on en masse mentally fucks with your head, even if the individuals you kill are perceived as vermin/degenerates. This is why they moved on to using other means that is more dehumanizing i.e. pressing a button for the gas chamber