Started playing the game with the current version and clicked through, so I can't say anything about the length of the 0.3 -> 0.4 update. It ended quite abruptly though.
Okay, the renders / graphics got some well deserved praise. For personal preference I could have done with less exaggerated boobs on the Aunt's part and a non-baseball-bat of a dick. I'm always a bit uncomfortable cheating with a char if the MC has a girlfriend. (Is it just me or does she look a bit like Carrie Underwood?) In the end you go for it though, since it's not avoidable in this case anyway. Wish the gf would get a little more action though - falling asleep just like that wasn't a nice twist. Otherwise the story progresses along nicely, choices don't seem to have much impact. Speaking of choices, instead of different "speeds" I'd rather have a second or third position during the sex scenes. As far as I remember there has been only one change, during the first time with Nikki.
One thing that's a pet peeve of mine: Dev should get somebody to proof read. The constant was / were errors and the old friend "would of" as well as it's / its gets tired.