No, I've also been worrying about the rate of updates and have talked about it some on my blog, but not everyone follows dev blogs, so I should have talked about it here as well. However, at the rate of development I started at, if I pushed out an update every month they'd be full of half-finished scenes. That being said I managed to get the first few updates out about two months apart. The reason this current update is taking so long is it's adding a family encounter, which are going to be among the longest, with lots of sex scenes and variations of what you can do. And on top of that, I had to stop and add an entirely separate encounter with another character so something I wanted to do with the family event made sense, so that's kinda my fault. If I'd planned better I could have put that event into a release before this one to cut down on time between releases.
I will however, point out that the current release has 81451 words which is already novel-length, and the current in dev version has 99046 words. That's almost a 25% increase, and I still have 3 more scenes to write before this release is done.
Now, as I've said on the blog I've done a couple of things to manage my writing time better and give me a more consistent amount of time each day, rather than just grabbing an hour here and there, which has seemed to effectively about double how much I get done each week, so releases will probably be a bit faster, and I'll see if I can think up a way to break up big scenes like this as well that won't leave me feeling like I'm putting out unfinished crap.