I'm not going to recommend much... though I hope you can read this and take my recommendations
-Add skills what could be separated from two parts
• One could be called Battle skills(or whatever you want to call it) what could work to combats and parkour
• And the other one could be called "Funny" Skills~(or whatever you can call it) what could be from: Allure enemies and seduce them to have the sex scene without being hurted,taunt enemies to make them hit more harder on their attacks but making them a bit slower or just dance
These skills can be obtained by leveling up and using skill points.If you want to do it easily to level up or what it needs to grind then that's something you can decide
-Lust Meter...and I think you know for what
-Add what when you parry they stay confused a bit longer and what on that moment a button shows up and when you press it you kick the guard and your character is on top of that enemy and fuck them
-Add what @Elique10200 put about a no clothes system and make our character react to it
-If you actually do the "Funny" Skills~ then try to put some reactions for the characters(like the two what were introduced on the game on their cells) when they noticed what you do with the enemies on purpose