I really wanted to restrain this slave, I started with a chastity device on his dick, which also squeezes his balls quite a bit, I restrained him with a straitjacket, and limited his leg movement, plus I put a gag in his mouth (I didn't want to hear more than his moans) and I put a hood in film paper quite tight, it only had a small hole in the nose so that it can breathe, breathe only when I allow it. 14 minutes of pain (for him) and pleasure (for me)