Looking for games where you play as a female protagonist that kills enemies (not necessarily monsters) through sex. VNs where you seduce men and lure them to kill them would also work.
In LonaRPG, if you go the succubus route, you can explode enemy while reverse-raping them. But you'll probably need to cheat to be able to play like that comfortably as the stamina requirement is quite high.
Ideology in Friction is the only one officialy released in english, that should be a start.
Or wait for Samurai Vandalism that's currently on localisation progress.
Their older games is underwhelming compared to Ideology in Friction, but The Heiress & Meritocracy of Oni Blade is pretty good if you liked Ideology in Friction. That's about it.
In LonaRPG, if you go the succubus route, you can explode enemy while reverse-raping them. But you'll probably need to cheat to be able to play like that comfortably as the stamina requirement is quite high.
H games like that are pretty rare, but I do know a few.
Karryn's Prison
Sword Girl Saya-Cool Rikujo Different World RJ275785,
Cool J K Crisis, illumina
You need to have stamina high enough for your sex attack to overkill. During the juicing you need to tap the key associated with the action being performed (e.g. X if it a blowie is in progress) to deal damage, the normal action to key mapping will be switched to the sex one once you initiate juicing.