It’s a slow burn unless you throw your fights, but Saria Reclaimed is a great corruption RPG about a hot chick wandering the wasteland rife with people who have a bone to pick with her (or rather, one to give her). The encounters are mostly human, but there are some otherworldly monsters in some parts of the game, which can be a turn-off for some people.

The sex parts are either through in-battle cut-ins (that escalate as she becomes more open to them/makes advances herself) or in post-battle scenes.