https://www.dlsite.com/maniax/work/=/product_id/RJ01507476.html

[Synopsis]

Today, as usual, Konami Kanzaki, her classmate Sano and the committee chair, Eira Aoyagi, were diligently working on their disciplinary committee activities when they discover an aphrodisiac that had been confiscated during a baggage search.
Eira tells them they must actually test it out, since if it has any effect, it's a violation; if it doesn't, it's just a drink.
So Konami and Sano reluctantly decide to give it a try...
However, Eira has already drugged them and their sexual desires explode.
Now the disciplinary committee members can only think about pleasure and their naughty committee activities begin (͠≖ ͜ʖ͠≖)

Base +28, nuts987 +14