Futari wa Choukyou Game no Ejiki ni Narimashita 2

Part 6 of the "falling prey to" series!

Deprived of the means to escape from this hellish sexual discipline, Eve is suspected of holding information on the extermination mission and is interrogated with an anal hook machine...
She continues to remain silent while her pussy is chafed with a brush, but do to her having undergone repeated sexual discipline, her body has developed to the point where she reaches climax simply from the lingering sensation left on her pussy.

Yet, she still does not break, and is once again paired up with Sepia for further training...

(Source: DLsite)