Need help looking for source/author an NSFW image

[decagem]

Hello everyone.
As the thread title says, does anyone know where the pic bellow is from or the artist?
Thanks in advance.

Spoiler: NSFW

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[soprano31]

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[decagem]

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Thank you. I'm still looking for the source material (manga, game, artbook, whatever) or the artist so I can check/support more of his/her work, but finding out the original image (mine was a scan from a print of the original) was an awesome help.