Why do you wear a mask?

Drew this on a trip in the car and decided to break out my new ink kit. Inked Succubot and Soundwave and then did an abstract background in Painter.

This is from my story "Succubot" where the Succubot has captured Soundwave and is playing with him by trying to get into his mind and find out what his greatest pleasure is. Little does she know Soundwave's mind is not the easiest to read.