The nurse SeXStoRY

I'm a middle aged guy. I was happily married until me ex-wife decided to try pastures new and left me a year ago. I miss her but to be honest, life was too comfortable and the sex predictable. In contrast to my slim, good looking ex, I'd always had an eye for a divorcee who wasn't hard on the eye and attended to same drinking hole as me. Fortunately the feeling was reciprocated and we eventually ended up in bed. No big sparks but it was exciting at first. As our relationship progressed, Susie (for that was her name)put forward the idea of role play and maybe some BDSM. She was in fact a senior nurse so my mind and imagination went into overdrive. Susie told me that she was naturally dominant and I for my sins have always thought I had a sub streak. Susie said she would arrange things. About 2 weeks later I received a letter. The letter informed me to attend her house at a certain time and to be clean shaven downstairs. I complied with her instructions and rang the doorbell at 8am one Sunday morning. Susie opened the door. She was already dressed in her blue nurses uniform. For all intents and purposes, she could have been at work....except for the shiny black strappy 'fuckme' heels. She turned on her heel and said, 'Close and lock the door then follow me'. I did as I was told. She led me into a room which looked like it had once been a study. I noticed a low beam had several iron rings attached to it. There was also a leg spreader bar at the side and a table which had something on but was covered in a sheet. There was also a sheet covering something in the corner. My cock was hardening with just my imagination running riot. Susie said, 'Today you will regard me as your mistress. You will now strip and put these straps around your ankles and wrists'. I did as ordered. Mistress then attached small chains to my cuffs which obviously were then attached to the beam rings. The ankle cuffs were chained to 2 rings low down on the wall and either side of me. I was naked and spreadeagled. Mistress then put a ball gag in my mouth. My cock was now rock hard. Mistress removed one of the sheets revealing a video camera which she switched on. She had obviously preset it and it started to record. She went behind me sayin, 'Just so you realise that your not here to enjoy yourself'. The first strike of the tawse was light, the second and subsequent hits were not. I was still thinking and feeling about my hot buttocks when Mistress came back into view. 'Do you want to piss?' she asked. I shook my head. 'Gud' was the reply. Mistress then removed the second cover. At first I thought it was a fucking machine but what should have been a dildo on the end was a cock enlarger with a belted strap on it. The pump ball had been removed and the pipe attached to an empty pump grease gun, this was subsequently fitted to a small electric rotor motor. I realised why clean shaven was order of the day. Mistress said,' I need some sperm samples, you're going to provide them for me'. She then lubed my now very hard cock and pushed the enlarger on to it pulling the belt strap tight around my body. The lube made a seal and as mistress switched on the motor the vacumn began to suck and release. I was unable to move and the pump was relentlessly sucking and releasing my cock, a mechanical masturbater. I felt my climax coming. Mistress just sat there and watched as the pump slowly but surely brought me to climax and my cum exploded into enlarger. It was fantastic...... for a short time. Mistress kissed me on the cheek. She hadn't switched the motor off !!! 'I'm off for a bath, I'll look in later to see how much more you've come for me, there's a good boy' and she left me alone with the camera rolling and the pump pumping......