After mine and Naomi's first threesome, a chance encounter involving her boss that I detailed in 'Naomi's First Threesome', and before we discovered swingers parties, we'd wondered for months how to repeat the experience.
For a while, we looked at trying to set up another threesome and among the options we'd discussed was trying to seduce a teenage female co-worker of Naomi's.
However, though we'd abandoned that idea for fear of things going wrong and the risk of Naomi losing her job, about a year afterwards we ended up in an FFM threesome with a teenage co-worker of mine.
And it happened on Naomi's birthday, or, at least, on the night we held a birthday party for her at our place.
The guests were a couple of our more discreet new friends from the couples parties and a crowd of workmates from the places Naomi and I worked at.
Among them was Kathy, a timid little 18 year old brunette who worked in the same office as me.
She had a sexily skinny teenage physique with pert breasts and she favoured short dresses that flicked up in back sometimes as she was walking away, affording a split second flash of her knickers.
I didn't need a degree to figure out she fancied me. Sometimes I'd look up and Kathy would be staring at me, then she'd blush and get back to work.
But I never did anything about it. Why risk spoiling the sexually superheated relationship I had with Naomi for a fling with an inexperienced kid?
But on the night of Naomi's party, I got to have both.
Kathy showed up in a clingy little sky blue dress that fastened up the front with tiny matching fabric-covered buttons.
It was so short it barely covered her ass and she spent the first hour or so sitting in a corner sipping on a wine cooler, showing a lot of thigh and watching me come and go.
Then I saw her in the kitchen with one of the other girls talking her into trying something harder and next thing I knew she was plastered and very obviously staring at me.
"She fancies you," said Naomi, starting to get a bit pissed herself.
"I think she does," I laughed and left it at that. I'd never told her how Kathy looked at me at work.
"You know, she reminds me of Tina" she said, referring to the girl from our very first foursome.
Now Naomi mentioned it, Kathy did look like her, only less punky.
Then Naomi leaned in and whispered in my ear. "Bet you wanna fuck her, don't you?"
I looked at her. "Why? Do you?" I whispered back
"Touche," she said, letting out an embarrassed half laugh and walking away.
It was still early on in our swinging 'career' and even though Naomi had got into a naked snog with Tina during our very first foursome, she was still testing the waters of bisexuality.
At this stage, going with another female was just something that might happen by accident, an unintentional aside while she was being fucked by that woman's husband or boyfriend. Right then it wasn't something she might consider doing, something she might plan to do, before the event.
As I went about the party after that, I started wondering if it might be possible to score a threesome with Naomi and Kathy.
Then, only 15 minutes later, events took their own turn.
Drunk and staggery, Kathy cornered me coming out of the bathroom, hissed a slurred 'Come here, come here!' and drew me into the dimly lit laundry nearby.
There, she threw her arms round me and kissed me drunkenly, pressing her body against mine. I put my hands on her hips and kissed her back.
When she finally pulled her mouth away, she looked at me breathlessly, trying to read my face.
"What was that for?" I teased.
She looked at me with an expression of nervous desperation and pressed her cheek to mine, her lips beside my ear, breathing rapidly.
"Make love to me!" she whispered, her voice quivering. "You can - I'm on the pill, I started last month! You can do it to me and I promise I'll be good!"
I still can't believe to this day I missed reading between the lines of what she said. All I can say in my defence is I was a bit pissed myself and rather distracted.
As she spoke, she pressed her body even more tightly against me and my cock began to harden.
The fabric of her dress was deliciously thin under my hands. I could feel the waistband of her knickers and the slenderness of her hips.
My swelling cock was bent out of shape in my underwear and I wanted to adjust it and let it stand up straight.
"We can't here..." I began but she plunged forward and planted another open mouthed kiss on my lips.
"Yes, we can! Yes, we can!" she moaned frantically, pulling my right hand up onto her breast.
So much for being shy and timid. The booze had made her let right go.
She was drunk and horny and ready to let me do her right there in the laundry.
I squeezed her small firm breast and she moaned. The material of her dress and bra combined was still so thin I could feel her nipple hardening under the flat of my palm.
Then her hand was down at the front of my trousers, squeezing at the uncomfortable bulge there, making me groan.
I could have taken her there and then, I certainly wanted to, but I eased her away from me.
"No Kathy, not here," I said.
She looked at me desperately. "Don't you want me?"
"Of course I do," I said, "just not here and not right now. Anyone could walk in on us. Besides, I thought you wanted me to make love to you, not bang you against the wall."
"When then?"
"In a little while. After the party. Just wait."
We straightened ourselves up and emerged back into the house, me first then her.
Kathy tried not to look at me as she crossed the room unsteadily and got herself yet another drink.
It was already late in the evening and an hour later the original 50 or so guests were down to about 10.
With our straighter work colleagues out of the way, a couple of joints were passed around and Kathy, sitting thoroughly sozzled on the end of the sofa, let herself be persuaded by me to have a toke.
She tried to draw the smoke in but just puffed it straight back out of her mouth.
"You could shotgun it," said Naomi, laughing and winking at me.
I knew what she was thinking - it was shotgunning a joint that had got our first threesome rolling.
"What's that?" asked Kathy.
"I'll show you," Naomi replied and she took a toke then turned to me and we went mouth to mouth, her breathing out as I breathed in.
"Now he'll do it to you..." said Naomi, grinning at her.
"Oh..." said Kathy, embarrassed. I think she was beginning to wonder if Naomi knew about what happened in the laundry.
"Or I could do it with you, if you prefer girls," continued Naomi, teasing.
A couple of the others laughed and one of the guys called 'Yeah! Let's see that!', embarrassing Kathy even further.
