Every time you pleasure yourself or are given lust by someone else your arousal grows. Now imagine your arousal would stay until your next orgasm, because it’s the only thing that can release the build up lust.
That’s exactly what this file will do. Pleasuring yourself is creating some kind of friction, rubbing against yourself, a toy, a partner. Friction of course generates heat. This file will only change the kind of heat you experience.
Every time you get pleasure you will drop a little bit deeper into the heat. Of course there is a safety that allows you to function when you lack the privacy to indulge in it. But otherwise the heat and desire in you will just grow and never fade. The only way to reset it is to have an orgasm.
Which of course makes this the perfect add-on when you play with orgasm denial. Or just a fun way to make your lust more intense.