Battle fuck even though is present in a lot of games their execution still lacks in most of them. Some of the best ones that I have come across are mentioned below:
Since you already like Miss Lissette's Assassin Maid by Hasoyua, you are going to enjoy
Key of Egg a lot. Made by the same developer. It has one of the hottest female protagonists among the games that I have played. Great art style through out the game. You can also check out other Hasoyua games. Most of them sport battle fuck mechanics.
If you are into side scrollers then I have a few recommendations below. They are all mostly battle fuck games.
Parasite in City is one of the very first games that I played and still love it to this day. The results the developers of this game have achieved just using pixel sprites is sort of a landmark in my opinion. Only problem is that the game ends too quickly and there are fewer H-scenes compared to what a normal JRPG offers.
Guilty Hell is a great one with loads of H-scenes and fuckable NPCs. The animation in the H-scenes are outstanding as well.
Alien Quest EVE by Grimhelm is a great example with lots of H-scenes and you can make the main character run around naked. Great art and unparalleled animation sequences. There are other games by this developer which are also side scrollers.
Most games by OneOne1 have battle fuck scenes in them.
The Heiress,
Ideology of Friction,
Meritocracy of the Oni & Blade and
Dark Elf Historia are the ones I have played and they all have sex during the battle. The sex scenes are too fast and end very quickly in all these games. But they are worth a try. The Heiress is very badly translated but you get the basic gist of the story. The others are translated well.
Now to one of my all time favorite games -
Sarah of the Rotation Cut, developed by H.O. Works and translated + bug fixed + additional content added by
kR1pt0n1t3 is one of the best games I've ever played. The game has battle fuck but it is a little bit of a hassle to trigger it. This game has lust system for the main character Sarah. The battle scenes are triggered only when Sarah's lust is high enough plus the enemies need to disrobe Sarah first to engage in sexual advances. This again depends largely on chance. Nonetheless, Sarah again is one of the hottest female protagonists and has the perfect combination of naivety and strength among all the characters of this genre that I've come across.