This is a second series of adult illustrations by artist Akableak featuring Oshino Ougi from the Monogatari Series being caught and undertaking tentacle sex. It's similar to the previous pool #22531, but without the implication that The Darkness is involved, and this time not numbered as it was posted (though they were posted consecutively in quick succession and imply a continuity of sorts).

It was posted on SubscribeStar (previously as paid rewards, but made public).