We had received a dinner invitation from Dee and Daniel, a married couple that had started working at my company, and although a few years older than we were, they seemed friendly and fun. When I first introduced them to my wife, Jennifer, there was an instant chemistry. They had just moved into a new residence, and invited Jennifer and me over for a house warming dinner. We brought a couple of bottles of wine for a house warming present but need not have bothered, the house was stocked with what looked like an entire wine cellar.
My slender young bride of not even a year was stunningly attractive, very curvy, a high tight ass, long legs, thick wavy redhead hair that ended in tangles around her shoulders. Her breasts were perfectly shaped ad precisely proportioned to her slender body, large B or small C cups, but if they had been any larger they would have been excessive for her frame. She was especially attractive tonight because she was wearing a black pencil skirt, dark green seamed stockings and a sheer silk white blouse accented by a stunning jade necklace that really accentuated her curves. She would wear this outfit for me on the weekends when we went out to the clubs, she didn't know this but I secretly liked the idea of men looking at her. Jennifer had been a virgin when we first met, I had been her first and only man in her life and her pussy. I considered her to be both worldly, and sexually, naïve.
After we ate dinner accompanied by numerous glasses of wine each...hell, let's be honest, numerous BOTTLES of wine, things took an unexpected turn. Dee told a couple of explicit jokes, and the conversation started to become increasingly risque. Dee related several of her favorite sexual positions and encounters, she was entirely without shame. This was a side of her I had not suspected existed.
After one particularly graphic but incredibly erotic story, Dee told us about Daniel's big cock and how much she liked it, which got me uncomfortable, but as I looked at my wife her eyes were glistening. I suppose the numerous glasses of wine loosened up all of our inhibitions, and was directly responsible for what was to transpire that evening.
Dee was explaining her boyfriend's attributes and how their sex life was creative and adventurous, 
"I met Daniel a few years ago and I must admit that although he's smart, handsome and masculine, his package was what first got my attention."
As Dee focused on Daniel's cock I was a bit jealous and uncomfortable, and rather wished we could find another topic of conversation.
Dee gushed,

"I love his thick cock, I just love it, can't get enough of him and becoming swingers is the best thing we ever did."
When she mentioned swinging I got nervous, but I didn't even have time to react because my wife sounded confused, "Swinging, what's that?"
Dee and Daniel looked at each other and smiled, rather like the cat that had just caught the canarie. Dee explained to my young wife the nature of a Swinger's Club,

"Come on Jennifer don't tell me you've never heard about swinging? Well, a Swinger's Club is where couples meet other partners to enjoy each other's company."
Julie blushed down to her roots, "And you do mean 'enjoying' each other's company?"
Dee explained to us how men and women hooked up in these clubs, without inhibitions or commitments, entirely open. Jennifer was gazing at Dee and Daniel like a deer caught in the headlights. Then out of the blue Dee asked,

"Would you like to see our profile on the website?"
My wife and I stared at each other and seeing my wife speechless, I decided to say something, "I don't know Dee, I don't think it would be appropriate."
Then Dee looked at us intensely,"Come on Doug, we're just looking at pictures. They are just electronic digits. Nobody ever got harmed by a few simple ones and zeros."
Still nervous about this suggestion I looked at my wife, who fidgeted, then smiled nervously,

"I guess looking would be okay, I mean it won't hurt anything."
I swallowed another glass of wine and joked that it would be just like like watching porn, only with people we know. I would never have thought that Daniel and Dee were so sexually liberated, this night was going in a direction that I had absolutely not imagined when I accepted their invitation.
If there were any way that I could have gracefully departed, I would have been out their door in an instant. But now my wife and I were trapped into visiting their swingers profile.
Daniel got his laptop out, Dee logged on to the website and there was their profile. After a few clicks an album appeared and she quickly picked one labeled 'Stallion Daniel.' At this point we were sitting on their large couch in the living room with Dee holding the laptop, Daniel on her right, my wife to her left and me on my wife's left. My wife and I were shocked when we saw a picture of Daniel sitting on the exact same chair sitting in the corner of the room, sporting an erection. It was massive and powerful looking, covered with heavy veins, circumcised. I swear the guy must have lifted weights with his cock, it was literally muscled, with a monsterous German helmet of a head. Jennifer and I met each other's eyes, and we gulped down some more wine. We continued with this tour of Daniel's huge cock and I must admit he appeared big, but it wasn't until one particular picture appeared that I realized just how well endowed he was.
His penis was on the same coffee table to the side of our couch, and he was fully erect with a measuring tape on the side reading nearly ten inches and in the adjacent picture it was wrapped around him to display a girth of over seven inches. This guy was a monster compared to me and I knew this, and so did my wife, because we measured my penis once for fun and my measurements weren't nearly as imposing. Indeed, my measurements were just under six inches in length and a precise five and one half inches in girth. I glanced over at my wife and her reaction to the photograph concerned me, her eyes were riveted on the laptop screen, and she was slightly flushed.
This was the photograph that began everything that happened that evening, and it haunts me to this day. I can never erase that awful photo, and my wife's response to it, from my mind.
That's when Dee started talking to my wife. I realized with a start that her left hand was gently resting on Jennifer's right thigh, "So, what do you think Jennifer? Is Daniel hung or not?"
My wife took a few seconds to respond as she looked at Daniel's penis filling the computer screen,

"It is really...impressive. I didn't know cocks could be so big."
Listening to my wife's fascination with Daniel's cock, with Dee's hand on her stocking-clad thigh, excited me. My heart was racing, my pulse was pounding and I was becoming semi-erect. I blamed the wine I had consumed, but I didn't even have time to fully absorb what was happening when Dee smoothly asked, perfectly naturally, as if this was a normal topic of conversation for a dinner party,

"How big are you, Doug?"
I really wanted to change the conversation but my wife blurted out my measurements. I couldn't even stare at anybody else's face, I was so humiliated. But Dee smiled,
"That's actually just a bit above average, perfectly respectable. That is nothing to be ashamed of, Daniel just happens to be hung like a stallion."
Then Dee dropped her bomb, "You really can't appreciate it, without seeing his cock in the flesh."
My wife was shocked at this bold suggestion and turned her head towards me, her eyes wide open in amazement. I just wanted to get my wife the hell out of here while she still had her clothes on.
I hesitated a moment too long, for Dee commanded her husband,
"Get your clothes off honey."
Daniel stood up, turned around, and undressed. He swiftly removed his entire wardrobe, except a black jockstrap. Daniel turned his head and winked at my wife before slipping it off. Dee called out,
"Behold!"
He slowly turned around to face Jennifer and she let an audible gasp escape from her,

"Oh...My...God...THAT is an amazing cock, Daniel." I was stunned and jealous hearing this come from my young innocent bride. But, to be honest, it was entirely understandable.
Daniel was a couple of inches over six foot tall, heavily muscled, wide shoulders, incredibly well built. His entire body was powerful, cut and ripped, and his huge, long cock hung down, swaying slightly. Dee was correct, seeing this monster for real was stunning. My mind staggered as I watched Dee rest her bright red fingernails on his shoulder, and with horror I saw my wife's eyes locked on the scene in front of us, absolutely enthralled.