Wet shaking mess

It might have started slow and gentle, but the machine was relentless. It kept moving, regardless how much you begged it to stop.

With the murmur of the electric engine it pumped a rubber dick in and out of your vagina. Occasionally adding a squirt of lubricant onto it.

Sometimes faster, sometimes slower, sometimes deeper, sometimes short and shallow. The tempo altered by a micro-controller which seemed to know just what will keep you right no the edge, but without giving you an orgasm.

Your bound body struggling against the leather, trying to move against it, give yourself an advantage, but unable to do so.

After nearly half an hour the door finally open and the sales woman walks through them with a smug smile on her face, finishing the last bite of a sandwich in front of you.

She walks towards you and crouches between your legs, observing your wet cunt up close. Listening to wet sounds it makes as the artificial penis leaves it for a second before ramming itself back in.

You beg her for the orgasm that still eludes you, at least as much as you can. You plead, you ask and ...