I meet my new Mistress for the first time

Squatting in front of me, she took each of my balls in turn into her mouth and gently kissed and licked them. The contrast between the pain I had experienced only a few moments ago and the pleasure I now undergoing was extraordinary. Sandra stopped kissing my balls as abruptly as she had started ‘Don’t get too used to me being nice you little bitch, now get on your hands and knees’ I knew better than to question her order and immediately dropped to the floor. ‘Now I want you to crawl to the other side of the room’ Doing as I was told moved across the floor on my hands and knees. Each time I moved forward the chains pulled cruelly on my abused balls. Finally I reached the other side of the room. ‘Do you want your cock unshackled?’ Sandra asked. I nodded in reply. ‘Lie on your back then’ As I did so, Sandra removed a thin chain from around her neck to which was attached a small key. She then took the chain and key, spat on it and inserted it deep inside her cunt. ‘If you want to be released you have to get the key yourself…. but you can only use your tongue!’ Sandra positioned herself above my face and then lowered herself until her cunt was directly on top of my mouth. I began using my tongue to part the lips of her cunt before pushing it inside her. Sandra began to gently moan as I probed inside her for the chain and key. However, I was unable find anything. Arching my neck and straining hard, I pushed my tongue deep inside her until finally I felt the metal chain. I slowly worked the chain down from inside her cunt until a few links of were exposed at the mouth of her pussy. Gripping the links between my teeth I pulled, at the same time Sandra stood up and the chain and key were yanked from inside her. She moaned with great pleasure and smiling at me for the first time said ‘You have finally pleased me so now I am going to reward you.’ She took the key from my lips and unlocked the device that encased my cock. As she did so I could feel the blood surging into my member and it began to feel thick and heavy as it slowly became rigid and hard.