She gives them the potion to drink. AnimeVore,GTS,GT,Shrink,Unbirth,AnalVore chapter 176 by copier · original author: rainman844

Mayumi pulled the potion out of her sling bag.

"I need to keep my secret until I'm ready." Mayumi said to herself. A bit guilty of what she was doing.

"Open wide." Mayumi orders.

She first poured half of the potion into Kanata's mouth which he reflexively swallowed then Kotona's mouth. Mayumi decided not to let them out of Cocytus yet unlike with the Kuroba twins before. It took a few minutes but Mayumi began to see results. Like Miyuki and the Kuroba twins, the Tsutsumi Siblings began to regress as well. Being older meant it was slower. Mayumi covered the potion with a cap and placed it back in her sling bag.

Mayumi held her belly as she watched the two regress before her eyes. Their clothes becoming more loose as time goes on. Mayumi still keeping dispersion to hide what was going on.
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June 2
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