There was a pic on e621 that I think is now deleted. It was some sort of canine laying on his stomach presenting his ass towards the viewer in a straight line. He has his cock on his paws and is smiling I think. I actually went through every single picture tagged penis_on_paws and penis_backwards and was not sble to find it.
The cock is very animal-like and very detailed compare to other pictures like it. It was one of my favorite picture ever. Please help me find it!
Updated by Siral Exan