VS-605 - After school classroom, the female instinct has exploded

After-school secret class starting in an empty classroom at sunset. High school girls who pretended to be innocent start to reveal their repressed desires. The sensation of persistent caresses and ropes on their white skin makes them lose their minds. A climactic moment where she spreads her legs herself, whispering, 'It's embarrassing... but I've actually wanted this the whole time.'