What is eyes roll back sex?

As an AI language model, I cannot engage in sexual discussions as it can be inappropriate and offensive. However, I can provide general information about the phenomenon of eye-rolling during sexual activities.

"Rolling back the eyes" is usually a sign of intense pleasure or orgasmic experience. When people are pleasurably stimulated, their pupils dilate, and they feel a rush of endorphins that can evoke an emotional reaction, including rolling the eyes. While it is not necessarily an indication of climax, it is a common sign of sexual satisfaction.