I am pretty sure that I had seen some of these artworks but I can’t recall, and so far I could not find more info. My main site is down at the moment so I can’t check the collection there either.
As always, suggestions are welcome.
* A few days later I was able to check and it turns out these art from artist Rudolf Preuss
Spanking Artworks 
Love the brutality of the way the male does with the others.
Again a great find, Love it!!
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