This is so amazing and freaking hot! It's sad it was uploaded 4 years ago and 3rd chapter(last) isn't in English and out years ago too. Usaden works are really amazing and I always waiting for more.
I'm also waiting for Hitozuma - Kasumi-san no Ubawarekata 2 Zenpen and Kouhen in English. Kouhen is really good.

I lost track. Is he doing his mom and aunt. Her sister?

Great work, please do part 3, Kodomo-girai na Cool-kei Hitozuma Ayaka-san and Hitozuma Kasumi-san no Ubawarekata