Would anyone happen to have any idea?

https://m.youtube.com/watch?v=59sXEseckx0&pp=ygUMV29tYW4gZ3VuZ2Vk

Looks very much like a WAMTEC scene

Renna Ryan, in fact

https://wamtec.umd.net/download_info/renna-ryan-in-the-gunge-tank

I didn't realize Renna did WAM other than the Anglefan scenes with Ken (some of which don't seem to be available anymore).

Oh yeah, she's done a lot in fact. If you look around the web you can find a lot of pie and cakesitting videos she has done. She's also done a couple custom videos for me over the years.