You start to grind in rhythm with my thrusts now, like a real slut you are learning all the techniques.
You NEED this cock inside you. It brings you closer with every stroke, you want to say "no" but your cock and balls say "don't stop!", you moan and grunt as your body squirms with spontaneous, primal spasms.
So close now, I thrust into your ass faster and deeper, you never thought it would be like this, your cock is aching and throbbing, but you can't reach it or stroke it while hand-cuffed.
But that doesn't matter, you can feel it now, the pressure and the familiar tightening down there, so close, so desperately close! Just a few more thrusts. . . . . . . .