Married (happily, just very vanilla sex life) but wanting to find like minded, open and platonic friend to meet up with once or twice a month - at first for small talk, Small talk becomes very frank and honest admission of all mutual turn ons and fetishes, and a resolution is made to action the one at the top of both lists as soon as is humanly possible. No judgement on what's on yours

I have a thing for spending my hours propositioning slightly older women who know what they want and have been through enough boring bedtime suburbisex. Let's get into a safe, warm, comfy room, which we come once or twice a month to get acquainted, or even sooner if there is the possibly that we have eyes for each other. For the large part, initially conversation will be bland and generic. However once we have established a good conversational rapport, we'll start talking sex, politely and suggestively over wine.  In a more private moment, before anything else happens, you and I write three fetishes, acts or other sexual admissions on three identical notes.  The notes are sealed, and at this point, we put a great amount of trust in each other. (This is how it's all panning out in my head, anyway - we can edit the details in conversation to suit both our erotic needs before it ever becomes a true scenario.

In any case, at that point we very slowly take off each other's clothes, looking into each other's eyes and smiling. Once completely naked, we sit across from each other on the floor, and can stare at leisure on the other. Naturally, conversation turns sexual and we ask each other the best way to touch each other, to kiss each other, to drive the other insane with longing. At any point, one partner may touch, look at or stimulate any part of the other partner they wish unless it is made clear by the person being touched that they are not happy with this.

Meanwhile after another class of wine and some exploratory gentle touching and perhaps kissing, you pick one sealed envelope from my hand of three. I do the same with one of your 
envelopes, and we take it in turns to action what is written, or suggested by the cards within. 
Let's take our time and not talk at all if you'd rather my fingertips and my tongue were the way I talk. Either way, what is happening is a highly erotic sensory and sexual exploration, where we each completely trust in the other and feel no shame for speaking of their quirks and exploring ideas.

After several of these meetings, some over dinner, some in private, we reach a stage where we are so familiar with the body of the other, its pleasure channels and the way just the scent of you naked is enough to make my hair stand up. We willtake the time to learn each other's body tenderly but with purpose. Never as true lovers, but as people who enjoy arousal through safe experimentation with a person who they explicitly trust. Of course, more wine, and more inquisitive touching (perhaps opening another pair of envelopes), and twice a month we arrive at a point where we instinctively know how to eke out every tiny moment of pleasure from each other. And at this point, at the absolute zenith of arousal for both of us, we begin to make slow but powerful love, with no anxieties, no baggage or connection outside of this room. Just two people who trust each other with their bodies, and with their discretion.

That of course is just one of the ways I've seen it play out in my head, but I'm sure if we get chatting we can add some wicked little embellishments... To get you started, I'll give you a list of three items that would go in my envelopes:

1. I want to perform sex acts, including full penetrative intercourse, with one or more people watching quite closely. 
2. I very much enjoy the idea of being topped by a woman in charge. In fact, before this I would like to try more anal play techniques on another for pleasure, and to have those actions 
reciprocated. 
3. I would like to visit a swinger or dogging event, and watch my original partner consensually  engaging in sex and sexual activity from another perspective. I would also like to reverse the situation and talk about the experience afterwards.

Oh ok. One more:

I would really, REALLY like to fool around outside again, both in secluded areas and maybe more public ones requiring additional ingenuity.  

Your turn!