Edging tank (Pixiv Fanbox)

We always strive to keep our trainees on edge for as long as possible to make them docile and cooperative. It’s difficult to do that and sometimes trainees’ climax without us having much control over it. How great would it be, if there was a way to keep trainees on edge permanently, regardless of how much pleasure they’re receiving? Introducing: Green goo. Right now, the goo is quite unstable and needs to be held in a special solution, however, our scientists are working on that. Trainees who encounter the goo lose the ability to climax if the goo is around, which leads to some extremely frustrating situations. In our test environment we submerged a trainee in the goo-tank and measured how many times she was close to orgasm without being able to reach it~ How about we crank the intensity up a few notches more and see what happens?