We kept on talking for next half an hour we shared some dirty secrets with each other. Then he told a hilarious joke and I just burst into laughter so... hard that I may have kicked the table and the candle fell on my robe setting it on fire. I took the robe off ASAP and there was a brief silence and stillness because of the fire incident as well as me standing there naked.After a few moments he said that he will get me another robe with his eyes stuck at my body. I told him there is no need to. I'm at that point where I could push myself over the edge and orgasm anytime. And greedily, a part of me wants to do exactly that. Practiced experience has taught me that it will be so much better if I don't.It's time to go to my study. He and I sometime sleep in there. But this morning, I retreat to the study to see the lake and to take myself right over the edge. Somehow, some way, this seems to bring me closer to him. Naked, I kneel in front of the window and spread my legs. I masturbate. "Stand up slave boy, now I want you to get on the coffee table face down ass up." I tried complying as quickly as I could, clearing all previous thoughts cleared out of my head replaced with the delicious thoughts of having my ass filled and my prostate stimulated by Mistress strap-on cock. I realized eager as I was that with my hands cuffed behind my back that the task given to me wasn't so simple as I had no real way to balance and prevent myself from smacking my face into the table. "Awwwe. "My heart was thumping as if I'd just maneuvered through a full court press. Nobody besides me had ever touched my cock before, and you can bet that nobody else had ever stroked it. The feeling was out of this world. It was the same motion as if I'd done it myself, but what a difference. And this was my mother! But this was my mother. I shouldn't be feeling like this. God, I would have loved it if she'd decided just to keep stroking. I shouldn't be thinking like this.But I was stiff as a board..