Shizune's anal ○○ was steadily evolving.

A dimly lit gymnasium storage room. Shizune, suspended by both hands, in an embarrassing state. Both her feet were also bound, and her body floated in the air.

Liquid was successively injected into her widely opened, fully exposed anus, the liquid, reaching her sigmoid colon, distended even her rectum, and finally, a foreign object was thrust in.

At the unprecedented sensation of her anus being forcibly widened and torn, her nipples became erect, and she repeatedly reached climax, streaming tears and drool.

Her anus, which had been like a bud, became a widely split vertical anal opening more erotic than a pussy, and the ○○ was completed.