I found the manga in .pdf form from a Rapidshare download on 4chan. I then saved the images to .bmp and made the .rar. Here's the other manga. Her belly gets bigger, but I think it's because she gets pregnant. Shadow posted the same thing that's in the Marumaru.rar, images are just a little bigger.
Here's the other manga. Her belly gets bigger, but I think it's because she gets pregnant. There's no real "process", but it's a nice manag none the less.
4chan link while it's still alive:
http://orz.4chan.org/d/res/249527.html