On the morning that Theresa was due to visit my Aunty Caroline's for a session of female domination, aunty told me: "We need to get you kitted out. Let's see what we can come up with from my collection."
And we stepped, both of us naked, into her walk-in wardrobe, which had been the catalyst for my introduction into sex with an older woman and her skills at femdom.
"Theresa is a fussy submissive," my 38-year-old aunt informed me. "She insists on me wearing really erotic outfits, and since she's calling the shots - well, for the couple of hours she's here, anyway - I go along with that.
"And of course, femdom in really nice outfits is all part of the fun. Now, what can we organise for you?"
Aunty riffled among her wide collection of gear, then pulled out a bra which she held out for me to try on. It was a black, open-fronted PVC job, which pushed my 34-inch breasts into what I thought was superb uplift.
"Good," said Aunty Caroline, "Theresa is into body worship and your breasts must always be available. That looks good. Comfy?"
I nodded, looking admiringly into the mirror set on one door of the walk-in wardrobe. "Even I fancy myself," I told Caroline.
Next Aunty Caroline tossed me a black leather garter belt. "Let's see how this looks."
I tried it on. It was quite a broad belt and gleamed across my hips. I thought it looked sexy. "Stockings from this package," said aunty, handing me some shiny, black seamed stockings.
I smoothed them over my legs and turned to look at my rear in the mirror. They looked sensational!
"Panties?" I asked Aunty Caroline.
"No," she said, with a firm shake of her head. "During a femdom session your breasts may be available for body worship, but your pussy must always be open for business."
"Speaking of pussy, aunty," I said, "I'm really starting to get eager for a piss, I only had my early morning piddle when I got up and you've been pouring the coffee into me."
"Sorry, darling," said Aunty Caroline, "but Theresa is a big fan of piss punishment and I want you to be able to give her a really good drenching. Please try to hold on."
I nodded. "OK, aunty, but it's going to be difficult."
"I know, pet," smiled my aunty, "and I'll try to get around to the water sports part of it quickly, but the longer you hold out, the more effective it will be for Theresa. Promise me, she'll thank you for it."
I then selected a ridiculously high pair of black patent leather platform shoes, and presented myself to aunty for inspection.
"Perfect," she smiled, "if I wasn't into domination I'd go down on my knees before you myself, you lovely young minx. Now, a couple of tips. Unlike many submissives, Theresa is not into verbal abuse. Calling her a slut, or a bitch, or a fucking pervert, is not going to get her bells rung.
"She calls me Caroline, I call her darling, or Theresa. But that's not to mean there's not a lot of verbal teasing going on, do you understand?"
I nodded, not really sure that I did, but hoping I'd pick it up as we went along.
"Right," said Aunty Caroline, "she's due in about half an hour. When she arrives, you pop down into the chamber and when I bring her in, I want you standing in the middle of the room, between those posts, hands on hips in a really aggressive-looking manner.
"I will bring her up to you and introduce you. Her first contact with you will be a short performance of cunnilingus."
I nodded, excited at the thought that the very first bodily contact I would have with a woman who would be a total stranger to me was going to be her mouth on my minge!
"And after that, the performance will unfold according to my directions. Just follow my lead and remember that Theresa is a devout submissive, she's really into it," said Aunty Caroline.
"Now, lay down on your bed, take some deep breaths and try to control that bladder of yours!"
I did as instructed and at about 10 to 2, Aunty Caroline entered my bedroom and told me to get down into the chamber. "She's due any minute," she said.
Heart thumping from excitement, bladder thumping through the pressure of needing to pee - not excruciating, but quite painful - I made my way down to the torture chamber, and according to aunty's instructions stood centre-room and waited hands on hips, trying to look as stern and strict as possible.
Then the door swung open, and there was Aunty Caroline, in a black quarter-cup bra similar to mine, those lovely long black leather boots and a shiny black leather belt which circled her hips.
On one hip a holster held a short, single-thonged whip, which dangled half-way down her thigh. She looked superb!
On all fours beside her was a mature, large, naked woman with close-cropped dark brown hair framing her attractive, round featured face. Her large breasts - 40-inchers, I remembered from aunty's little black book notes - hung pendulously. Around her neck was a collar attached to a leather leash which aunty held in her right hand.
"There she is, Theresa," said Aunty Caroline, in almost a little girl voice. "Shall we go say hello?" Theresa nodded her head, making her big breasts wobble beneath her.
"Come on then," said aunty, and she stepped alongside Theresa, keeping pace with her as she crawled across the floor to halt just in front of me, her face about six inches from the moistness of my minge. All thoughts of desperately needing to piss were now banished from my mind.
"This is my lovely young niece, Sam," said aunty, in a light tone. "Hasn't she got a pretty pussy?" Theresa nodded again as she stared up at my shaved snatch.
"Would you like to say hello nicely?" asked aunty. Another nod.
"OK, but not too long, Theresa, we've got to get started on your punishments, haven't we, darling?"
But Theresa was hungry for my pussy and already her mouth was working on my wetness, her tongue flicking into my dripping cunt, her lips caressing my piss flaps with their kisses, her mouth nibbling at my aroused clitoris. I moved slightly against her mouth, thrilling in the devotion of a 45-year-old submissive as she worshipped my snatch.
But then aunty, dragging on the leash, pulled her slave away from my pussy. "Time for a lot less pleasure and a lot more punishment, my dear little Theresa," Aunty Caroline purred, as she dragged the mature nude away to a place between the floor-to-ceiling posts.
"Help me get her ready, Sam," aunty ordered, and I placed the large woman's wrists in the straps, while aunty worked to pinion her ankles. Aunty then adjusted each strap using the pulleys until the big-busted beauty was tautly stretched in her place of bondage.
"Nipple clamps with those lead weights I've attached to them on her nips, please, Sam," said aunty and I picked up the heavy weights from the equipment bench, sucked on our slave's nipples to erect them, and fitted the clamps on. Her large nipples were dragged down by the weights.
When I'd done this, I noticed that aunty had pulled a sort of see-saw device from the side of the torture chamber and placed it so the upper half was in the space between Theresa's widespread thighs.
The leather-padded device had several straps on it, but these were not brought into play when Aunty Caroline ordered me to lay back on the see-saw, my head resting on the padded pillow at the end below the front of Theresa's body.
Aunty then picked up a lead weight, such as body builders use on benches to add tension to their work-out machines and placed it on the end of the see-saw, between my feet. This served to raise the end of the see-saw so my face was now close to Theresa's thick-lipped pussy, her dark-brown hair trimmed back to totally reveal her most intimate parts. The pussy was, I noted, very wet.
Aunty Caroline then pushed the see-saw so I was further from Theresa's pussy and Caroline stepped to one side of her victim and traced a large-flapped flogger against her sex.