I fear most porn games that are available right now really twisted people's expectations. If people don't get what they want right away, the game "sucks": god forbid developers try to build something interesting around that, which IMHO the Paradise Lust folks are doing great.
I see a simlilar pattern in expectations on the games playability as well: people are so used to visual novels where you just click-click-click and some booby stuff will happen sooner or later, that they forgot you can actually _play_ a game that has a moderate level of difficulty. I personally see Paradise Lust as a sort of point-and-click adventure (the cartoon graphics certainly would fit perfectly in one of those), even though it's very watered down of course to make difficulty very low (you can basically skip any puzzle that blocks you) so that it's accessible to everyone, and yet I'm astounded by reading the amount of people that fail to solve even the most basic "use this on that" puzzle the game occasionally throws at you. I guess that if they tried to play Monkey Island they'd probably crouch under the desk in a fetal position.
I get it, it's p0rn, we're all here for the boobies, but I think we're lucky to have games like Paradise Lust, that besides presenting us with "nice" people and a reasonably healthy relationship among the different characters (without the "mind control" stuff most games have nowadays), at least try to challenge us a bit, to make the reward (and what rewards we've gotten so far!!) more satisfying in the first place!