This so much, those inconsistencies are highly annoying. Game is all over the place in that regard, the one sister freaks out when you enter the room while she is changing even though she will sunbathe topless, give blowjobs and lets you fuck her in the ass, the other one is fucking you in front of an audience yet yells at you if you want to enter the bathroom while she is in there... would only take a few renders and a little bit of text to sort out that mess.
Other than that, the only real quality of the game lies in the renders, rest is mediocre. The story is absurd, text during the scenes is as erotic as reading the disclaimer on a bottle of shampoo and the game is grindy as fuck.