Idea for the futa mode:
hiding spots are actually sex toys for the prowler so you can get scenes about four or so scenes with maybe some other mechanic to explain it.
Pov blowjob
Pov ballsucking
Pov rimjob
Pov pussy eating
(facing away from the hiding spot for the last three, ballsuck could be both but away would be more fitting.)
Mechanic idea for why the prowler don't immediately get you instead: prowler (for example Kar) will pretend to not know the player is there for 3 up to uses of the hiding spot with player then you could get an alternate caught scene which would be like using horny spray but the player doesn't get to choose the scene to play.