Like the demo gameplay.

There's no explanation why the enemies want to have sex, or what she gets out of it. Though it's not my favorite mechanic, luring the enemies in to sex scenes is better than some alternatives.

Having sex with the enemies should weaken or vanquish them I think. 

It would also be more believable if she were the aggressor rather than a passive participant. Like the tit job. If she's going to do that, have it be with an NPC, not an enemy.

All that said, I know how hard it is to make a polished game like this, and I'm interested to see where it goes.