Umm... okay. I'm gonna give the dev the benefit of the doubt for now but that was very unexpected. I hope things don't go too far in the direction this started into, though...
When it comes to harem-style games like this, so long as the MC is the only male character with any sexual influence I have no problem with whatever the ladies get up to amongst themselves, so long as they remain available to the MC.
I don't get overly fussed. Ren'py's skip function is excellent for bypassing what you've seen before an jumping to whatever's new. Just be sure to make a save at or before the first major choice in the game, and restore there.
I presume this one and the July update were originally planned as one update but got split for some reason. Good to see things progress and get some new characters.
It certainly looks like the dev has upped his art style - I don't recall the game's environments being so detailed before. If a lot of the time since the last update was due to that it's understandable.
Not sure if those three cuties are nieces or dau-neices, but at any rate I look forward to lewding them. The (step?) daughter also has promise. Hope for more soon!