Sister’s Anal Training Simulator [Bīdoro Staff]

Synopsis

Big brother, it’s okay if you do it in my butt. But please don’t put anything too weird in there.

An incestuous anal training simulator for expanding and developing your sister’s rear!

While mom is away, use the tools you’ve prepared to play around with her butt hole!

A mischievous experiment to see how lewdly you can develop your sister’s rear opening!

Big brother, something that big won’t fit…

[Select Tool]

Choose tools based on your sister’s condition. Will it go well today?

[Check Anal Sensitivity and Training Data]

Now, show me your butt hole. Hmm, it looks like this today.

Oh? She seems to be feeling really good today.

[Begin Anal Insertion]

Time to put it in her butt hole! Relax and accept it.

[Training]

Excellent! It went in smoothly! Time for training!

●Replay from Day One with current anal development level preserved!

Training impossible in single play becomes possible with maximum expansion!

●New sensation: Heartwarming Perverted

With a soft, cozy touch, but perverse anal expansion play content!