>>55606059They're neat. Often you can just describe to them what you want them to consider (eg tell Marnie that she's attracted to older men) and then cycle through generated responses until she agrees to it, then it'll just go from there.
The only difficulty is that most of these sites have intentionally made them try to avoid anything too extreme. You can get away with more conceptual fetishes though. If you like bimbo talk, or getting insulted etc. that can work