I'm kinda disappointed. The previous update was better, full story with teacher and mom on the side.
On this one cousin was rushed, but I don't care about her as a character (and I don't think that anyone does), there was no build up. Aunt and mom is always fine! I'm ok with 3rd base with them, as long as a secondary character like the teacher from the previous update have full development.
It was a gamble to put all 3 (sister, aunt and mom) for just BJs. He should have "burned" one of them for full sex with repetitive events on the map to keep re-playability, since updates take so long. It would keep people interested showing that he has an end game. I would have burned the aunt for a full sex scene making this version 0.7, keeping sister for 0.8 update or something, 0.9 closing all other characters, and mom with Lilith for 1.0 (finale). A simple road map would keep everyone interested and trusting that the game has a direction and the dev a solid plan.
Those games that the devs create as they go, juggling characters stalling the plot, remind of those procedural shows that lose audience because there is no end goal in sight. This always leads to the accusations of milking the fanbase.
Well I love the game, love the style, the art, the story, the main characters, and the dev really communicates well keeping everyone informed of the process, but I hope to be alive when the game is complete...