Back in aunty's bedroom, we lay on her bed and she took out – and I am not joking – a little black book from her bedside table drawer.
"I keep notes on all my clients in this little book, so I can swot up on their preferences, although I know most of the details, but a little refresher course never did anyone any harm," my lovely 38-year-old aunty-cum-dominatrix told me.
"Now let's see," she said, thumbing through the entries. "Ah, yes, Theresa M – my clients expect and receive total anonymity," said Aunty Caroline. "One must be discreet in this profession."
"What's her poison, aunty," I asked, eager to hear what games we would be playing.
Aunty Caroline read from the page on Theresa M: "She's 45, with vital statistics of 40-27-38. Likes: pussy and nipple punishment, golden showers, forced adoration."
I plunged in with a question: "Golden showers I've studied, forced adoration you've shown me today, but pussy and nipple punishment?"
Aunty Caroline smiled: "Oh yes, they are two favourite delights for most of my clientele. I'll give you a quick demo later." Then she read on: "No no's – some clients absolutely refuse to have anything to do with certain practices.
"Now, Theresa's 'No no's' are dildos and anal intrusion," said aunty.
Then she slammed the book shut and announced: "Enough research, now I promised you a demonstration of pussy and nipple torture."
I recoiled at the mention of "torture", but aunty smiled indulgently. "Don't worry, I won't be tearing your titties off, darling."
She stepped into her walk-in wardrobe and returned, now wearing high heels and that familiar black quarter-cup bra. In her hand she had a crop, several black silk stockings and some clamps.
"Right, Sam, let's have you kneeling up at the foot of the bed, facing me."
I obliged so that my naked body was facing her. Aunty Caroline then took my right wrist and tied a stocking to it, then did the same with my left. Around my upper shins, just below my knees, she tied two more stockings. She added another stocking to the free ends of the four attacked to my wrists and legs.
"Now to get you stretched, my pet," she said, taking the outer stockings and tying them expertly to the bed posts. This had the effect of tensing my entire body. It did wonders for my breasts, which I felt were thrust up into great uplift! For my pussy, of course, it meant total and unencumbered exposure.
Aunty then cupped one of my breasts in her hand and sucked on my nipple, engorging it, before attaching a metal nipple clamp into place on the erect bud.
She did the same to my other nipple, then placed two lead weights to the D-ring attachments at the bottom of the clamps. I felt the tension in my titties, but was proud to see that my 34-inch breasts were still standing high.
Aunty surveyed my predicament and smiled: "Now I'm going to give you some mild twat torture – and it would pay not to writhe around too much, because those nipple clamps aren't coming off for a while!"
I nodded my understanding, hoping that I would be able to adhere to her instruction. Somehow, I felt it was going to be difficult.
Aunty Caroline then picked up the crop she had emerged from the wardrobe carrying and placed it just below my mouth. "This is a simple little riding crop," she informed me, "but it has one rather rigid flap at the business end. That's for your pussy. Would you like to kiss it?"
With that, my aunt placed the flap against my mouth and I placed a reverent kiss on the coolness of the leather. I found the ritual stimulating and hoped that I wasn't too wet down there, although I could feel my juices starting to stir.
Aunty then stepped back and placed the crop's flap against my pussy, rubbing it delightfully along my sex trench before pulling it away and inspecting it. From where I knelt in bondage, I could see the glistening gleam my juices had deposited on the leather – clear proof of my arousal.
My aunt smiled knowingly and then flicked the crop against my piss flaps. "Ooooouch," I yelled, as the pain stung through me like an electric shock. And, to add to my worries, my upper body threshed around, causing sudden little jolts to run through my titties and breasts.
The next blow I was expecting, and although I didn't cry out, the surge of pain which coursed through my sex caused me to writhe again, sending little volts of excitement through my boobs.
Slowly, with a deliberate cadence, aunty continued to whip my poor defenceless pussy with her riding crop, but after a while I found I could control my upper body, cutting back on my wriggling and writhing until I was receiving the punishment almost stoically.