Is it ok that I'm definitely going to masturbate to this game?
Ok, so here's the final version of the system.
Your goal each battle/sex is to get max points. There's no dying. The point determine the amount of experience points you get.
There are 4 scoring factors:
Battle duration (the more the better);
Chain attacks (using moves in a specific order, different for each partner);
Maximum damage;
Pleasure;
There are 7 different moves (learned throughout the game). Each consume an amount of HP and MP. Basic "fuck" moves don't consume MP.
All moves deal damage. Some moves also have secondary effects, which are: lower own attack, lower enemy attack, increase enemy attack.
Some enemies don't attack at all. Some do, but still, they act at a much slower rate than the hero.
Each time you use a "fuck" command, your own attack is lowered.
There's also a "rest" command, which recovers your HP and attack, but it costs MP.
There are also items.
MP is replenished after each battle, but HP is not. It recovers by itslef slowly though.
So basically, battles can be really easy if you just want to finish them fast. If you aim for maximum score, they get tricky. This "tricky" is a strategy element I decided to add in the game. But it's kinda "optional".
Though there is no dying, there is a gameover. The game has a horny meter, which grows with time. When you successfully finish a battle, regardless of the score, it is lowered. If you fail (your HP goes down to zero before you finish), it raises. If horny meter goes too high, you die, gameover. So, say, if you just rush through battles, you'll get very little XP, stay at a low level, and later battles will get too difficult, and you're bound to fail. So, in a way, the game does force you to try to be successful and develop strategy.
It's done. I'll probably just have to ajust some numbers. Once I'm further along, I'll ask some help on battle testing.