In his hands, the simple length of fabric transformed.  As he looped it around my neck and tied a loose knot I became centered, grounded, reminded of my place.  Kneeling in perfect Nadu, the noise of the world faded and I focused on him.  Every nerve ending charged, anticipation coursed through my veins.  

"Pleasure yourself, but no cumming without permission.  Understand?"

"Yes, Sir,"  

I teased my nipples into hard peaks.  Parting my swollen lips, I rubbed circles on my clit and wantonly worked two fingers in and out, urgent need growing.  

Whimpering, I begged, "Please."

"Cum, now."

"Thank you Master."