The door from the street was set back just a little from the rest of the High Street frontages, between a solicitors' office and a bank, with just a small plaque marked "The Room". Beneath this, a sculptural and abstract brass doorbell, that once you took a closer look was clearly and unmistakably in the shape of a vulva. The clitoris had a rich lustre, clearly many fingers had caressed its inviting form.

You wouldn't even notice the door as you walked by, yet to those lucky enough to have received an invitation the heavy dark studded wood would seem perfectly appropriate.

V and I were a few minutes early, and hung back a little way from the door. There was another couple invited, or so we had been told, and we'd been given strict instructions that we must all enter together. The street wasn't entirely empty, so we had some people watching entertainment as groups and couples wandered from restaurant to bar, or from bar to takeaway.

The evening was a warm early September, so many of the Saturday night partygoers were dressed to show off their tans in short dresses and we both appreciated the show as we patiently waited for our allotted time.

We weren't quite so summery in our dress, having opted for classic all-black outfits. I wore jeans and an open necked black shirt, and V a demure yet sexy dress that clung to her curves in a way that made my mouth water and a sexy pair of heels with a discreet snake skin texture. Underneath she wore a black lace body, and I would have had her wear a buttplug had the message from The Goddess not strictly forbidden it.

We didn't know quite what was in store behind the studded door, but our host had thrown some spectacular parties we'd been lucky enough to attend. We were a little impatient to get started then, and I noticed V's breathing was a little quicker than usual. I squeezed her hand and we kissed, and a moment later there were footsteps approaching.

We turned, and were greeted by a couple about the same age as us, and very attractive. He was tall and slim, and she was short and curvy with long dark hair and a figure hugging dress. Both all in black, like us. They introduced themselves as James and Julia and we slightly awkwardly did the air kissing thing, each very aware that by the end of the evening we'd know each other rather better.

We stepped up to the door together, V and Julia both reaching for the little brass button at the same time, giggling as they stopped themselves, then extending their fingers together to press it at the same time.

A second or two later there was a click and the door opened a fraction. We exchanged glances then pushed the heavy wood open. Inside was a dimly lit room with a black leather sofa on each side and a wide set of stairs leading down.

The door closed behind us, and we set off down, the women leading the way. It was dimmer still down here, and it took a few moments for our eyes to get used to the dark. As we became accustomed, a figure appeared before us. She wore head to toe black latex, with cutouts for her breasts and the piercings in her nipples supported the back of a silver platter via substantial D-rings. The front of the tray was supported by a silver chain which ran to her large red ballgag, and balanced on the tray were four champagne flutes.

She approached with great care, her arms bound tightly behind her back and placing each six inch heel down delicately and silently. We each took a glass, and found that on the tray beneath them was a piece of paper.

Julia picked up the paper and held it up, struggling to read the words. Our waitress, relieved of the stress of keeping the champagne perfectly balanced, turned and bent at the hips. The latex was cut out, and her ass fully exposed. From between her pale, round cheeks a light shone bright enough for Julia to read our instructions, which she did with a slight Spanish accent.

Welcome, my honoured guests and thank you for accepting the rather vague invitation. I hope it will be a night of great pleasure that you will all remember forever. I've chosen my guests carefully, and I believe each of you will find joy in my little game.

This is The Room. A rather sterile name, but you'll all understand the need for discretion. This evening will be my own little twist on an escape room, with puzzles and activities that I know my filthy friends will enjoy.

You have one hour to complete the tasks and find your way out. If you fail, then you all know the sort of punishments I enjoy inflicting on my captives. The clock starts when you open the door. My pretty drink server and torch bearer has the key, though I hid it well.

Her body is your to explore and use as you need, as are those of any others you may encounter. Their safe word is 'RED' or three grunts while opening and closing a fist. Please also use the hand sanitiser and towels provided.

Good luck and have fun

Goddess

We exchange glances, each of us processing the message and thinking about what to do next. V reacts first, always calm and business-like in a new situation. She steps forward and grasps the light then eases it out of latex girl's asshole, and uses it to sweep up and down her body searching for the key. The latex is tight and smooth on her slim body, not a bump or wrinkle where a key could hide.

Then with a grin at me, V turns her attention back to where she got the light. She reaches out a finger and pushes it inside, then another, twisting and reaching as moans escape the ballgag. Another finger, and latex girl rolls her hips, pushing back and moaning harder.

We are all enjoying the show, but it soon dawns on us that perhaps the key isn't in our messenger's ass, and James breaks the spell by stepping up and undoing the ballgag that's fastened behind her head. The gag slips out, followed by strings of saliva, and latex girl breathes hard.

"Where is the key?" demands James, but she closes her mouth and shakes her head. It's not going to be that easy, of course.

Then Julia takes the dripping gag from James, wipes it with a black towel and looks closely at it. Then she grips two sides and twists, and the gag begins to unscrew. Moments later the two halves of the ball fall apart to reveal a heavy key.

Julia thanks the key bearer and kisses her cheek, and we all get ready to open the door. The clock starts now.