Kinda reminds me post #2616692 Is there any spesific term for this kind of pose even? I think I saw same exact position from other artists too.
For some reason I thought that would link to a tanned Reiuji I think it is simply a popular lewd onsen pose that I too have seen used multiple times in anime scenes too. I attempted to google it to look for the origin but I Game Over and retired this quest when MLP characters began to pop up. In this pose yep.