Tummy rubs for whoever finds it
I looked through my old saved videos and found the file name for this (アリスとイチャラブ温泉えっち), which led me to:
猿飛 appears to be the author's name.
https://ecchi.iwara.tv/users/%E7%8C%BF%E9%A3%9B does exist but has no posts, not sure if it's them, or sure if they've ever posted to Iwara or not. I couldn't find a Twitter or anything for them. Maybe you can do some research and hunt them down, or if you have an FC2 account you can at least get the high quality versions of a couple of their videos there. Sorry I couldn't be more helpful.