Anal Mania Otaku to Ananii Daisuki na Ojou-sama 2

Shizue's anal training was steadily advancing. A dimly lit gymnasium storage room. Shizue, both hands suspended, in a shameful pose. Both legs also bound, her body floating in mid-air. Into her widely spread, completely exposed anus, liquid is injected one after another, the fluid that reaches all the way to the S-shaped colon inflates even the rectum, and finally a foreign object is thrust inside. At the first sensation of her anus being pried open and torn apart, her nipples become erect, while drooling tears and saliva nonstop, she repeatedly reaches climax over and over. The anus that was once like a tiny bud has become a lewd, wide-open vertical-split asshole even more obscene than a pussy, and with that the training is complete.