My wife and her sister have always been close and this has affected my relation with her and 
her husband, Tom, so I too like them very much. We spend a lot of time together and rarely 
meet other people to socialize.
The two sisters are very alike both body-wise as well as humor-wise. Both are slim, rather 
narrow hips and a cute protruding bum, small tits, long legs. Both are brunettes with 
shoulder-long hair. Gray eyes, with a shade of green in them. Straight noses, a little too 
long but they look just right on them. Large, and as it seems, always smiling mouths emanating 
an endless stream of words. That is the only drawback. They talk, and when I say talk it is a 
constant flow. Kate, my wife, even talks in her sleep!
Tom and I both like our beers and sometimes a little whisky as well. The girls almost always 
drinks white wine. Most of the time we wake up with something you might call a hang-over when 
we have had our weekly come-together. Nothing too severe but enough to make you feel a little 
heavy and stomach-upset the day after.
Once in a while Tom and I get really plastered. Once a month or something like that. This time 
it was such a time.
We met at our place and Tom and I started with a beer but soon enough I got the bottle of 
whisky and put it on the table. The whisky loosened our tongues and Tom started to brag about 
his sexual stamina and the size of his cock.
"Well, you don't have more in that department than any other man," Shelly mocked him.
"How would you know? You've only seen mine!"
"Well, I've talked with... Kate."
"I haven't seen more than you!" my wife protested.
I believed her because she had been a virgin when we met and had been so on our wedding day 
too.
"Aha. You see. For all you know I could have the biggest cock in the world."
"No you couldn't. At least Fred's is as big as yours! Isn't it Kate?"
"How would I know?"
"Well you've told me about his size, haven't you?"
"Yes, well I haven't measured it..."
"Noo. But you have described it very vividly!" Shelly giggled.
Kate pretended to be shocked but I could see that she enjoyed the situation.
"Ah yes, descriptions. It's like a fisher describing his catch!" Tom mocked.
"Why don't you show Kate your 'monster' then?"
"I could. If Fred showed you his," Tom said confident in that it would never happen.
"Yes why don't you show Shelly YOUR monster, Fred," my wife teased me.
"I could. If you showed Tom YOUR monster," I laughed.
"I could do just that. If Shelly showed hers to you!"
She raised her glass and saluted me and I was flabbergasted when I saw that it was a glass of 
whisky. Neither of the girls ever drank any hard liquor since they couldn't stand it. On the 
few occasions when they had drunk any whisky Tom and I had to take care of them.
"Well, if you start I will follow," I said confident that my wife would be too shy to go ahead 
with it but she took me by surprise when she stood, hiked up her skirt to above her waist and 
showed us her sheer panties where you could see the shadow of her pussy-hair.
Shelly followed suit, stood facing me and also raised her skirt and showed her panties.
"Your turn!" she said when she dropped the hem.
I stood, unbuttoned my trousers and let the fall to my knees, showing her the bulge that had 
started to form in my shorts.
"Oh yes!" Shelly almost cried out. "It IS a monster," and then she fell back in the sofa 
laughing.
I hiked up my trousers again and looked at Tom. Reluctantly he stood and repeated my actions 
to my wife's obvious enjoyment.
"That doesn't prove anything!" she protested when Tom again buttoned his trousers. "It could 
be a... fake!"
"So could yours," he shot back with a big smile.
"Oh no. This is the real thing!"
"I can vouch on that," I agreed and Kate smiled at me again with her glass raised.
"I can't take any words for something I haven't seen," Tom objected.
At this point Kate whispered something in Shelly's ear and with a smile she stood, reached 
under her skirt and withdrew her panties! Looked at Tom daringly and slowly raised the hem of 
her skirt higher, and higher till it was on the middle of her thighs. Then she looked over at 
me with a question in her eyes. Should she continue? My cock did all the thinking for me and I 
just nodded my head at her and the skirt rose higher, above the thighs and slowly her pussy 
came into view! My wife was showing her cunt to another man! The second man besides me to see 
it!
I couldn't take my eyes off my wife as she revealed her most secret spot! Soon she stood for a 
little while with her pussy exposed for Tom.
"Well," she asked as she let go and the skirt fell down and hid her pussy again. "Convinced?"
"How could he be?" I heard myself ask. "You can't tell a woman's size by the look of it!"
"Oh no, I couldn't let him feel me up..." she said a little uncertain.
"No, you can't," Shelly agreed. "I'll prove it to Fred, shall I?" she looked at her husband as 
she asked the question. He just swallowed and didn't object as his wife stood and let her 
panties down, threw them on the sofa beside Kate's and stepped over and stood in front of me. 
She grabbed her skirt and hiked it up above her waist much faster than what Kate had done and 
stood in front of me, with her side toward Tom and showed me her womanhood!
Slowly I reached out my hand and placed it on the inside of her smooth thigh. It felt almost 
the same as my wife's so not only did they look alike they felt the same as well.
I let my hand slide up and as soon as it was about three centimeters from her lips I could 
feel the damp heat and the closer to her pussy my hand reached the damper it got and when my 
fingers made contact with it her lips she withdrew a fraction but instantly pushed her hips 
forward and I could feel her wetness, well outside her pussy.
I looked up at her and her eyes were half-closed and her tongue flicked over her lips and she 
gave me a little smile as she saw me look at her.
With my eyes in hers I let my finger push her pussy-lips apart and sank the tip of it between 
the slippery folds. Her eyes almost crossed as she felt my finger draw along the hot slit and 
she sighed when I made contact with the little bump of her clitoris.
I glanced over at my wife when my finger sank deeper into Shelly's love-canal and saw her take 
a gulp of her whisky and again look over at her sister and me. There were a little blush on 
her cheeks and her legs spread a little as she saw Shelly's hips start to move against my 
finger. Suddenly she drew back and let her skirt fall down and went back to her place on the 
sofa opposite me.
"See," she said to Kate, "I could. Satisfied?" she asked me.
"No," I said almost choking from my hornyness. "Not the least!"
She gave me a big smile and looked over at Tom.
"You then, darling? Are you satisfied?"
"N-no. I know that you have a wonderful pussy! You don't have to prove anything to me in that 
department."
"Well that leaves you to prove your... point to Tom. Doesn't it, darling?" I said to my wife. 
My cock leaked so much precum by now that I was surprised that it didn't show on the outside 
of my trousers. And when Kate slowly stood and on a little shaky legs went over to Tom I 
thought that I would cum!
Kate let Tom feel her up a little longer than Shelly had allowed me but finally she withdrew 
and went back and sat beside her sister.
"Satisfied?" she asked in a little shaky voice.
"As Fred said just now, no. It's hard to tell with just a finger, and with you standing up. 
That position tends to... tighten things up a little," he grinned.
"Yes. It's impossible to measure without the right tool, that's for certain," I agreed. I was 
curious to know for how long the girls would take this.
I saw Kate whisper something to Shelly who was silent for a while and then whispered something 
back. This time it was Kate who was silent and looked at me and Tom before she again leaned 
her head towards her sister and whispered something to which Shelly nodded her head and stood 
followed by Kate.
"Why don't you help yourselves to another whisky. Shelly and I have something to... take care 
of first."
I looked surprised at them as they disappeared and I looked at Tom when I heard the door to 
the bathroom close behind them. As far as I knew they never shared the bathroom. I looked over 
at Tom and he just shrugged his shoulders.
We didn't talk while the girls were gone but we drank another whisky, just a small one each. I 
for one didn't want to be to affected by alcohol. I just wanted to know what was up.
The women seemed to be gone for a very long time but they couldn't have been gone for more 
than a couple of minutes.
"So, another whisky?" my wife asked her sister.
"Sure."
We sat all four in silence for a while and the girls sipped their whiskys.
"What was all that about?" I finally had to ask my wife.
"Oh. Nothing. Just a girl-thing."
"Girl-thing? Do you have girl-things we don't know of?" Tom asked.
"Sure. ALL girls have them."
"And I bet you two have the best of them all," I kidded.
"Maybe," Shelly smiled.
"I bet," I answered.
"Yes. You should know."
"Oh, but I don't."
"I don't know anything about your... boy-thing. You never showed me," she said a little 
accusingly.
"No, you didn't. And you were the ones bragging, not us. So prove it then!" my wife said 
challenging.
I looked at Tom took a swallow of my whisky and stood and slowly unfastened my trousers. A 
little nervous I looked over at Tom and he followed suit and simultaneously we dropped our 
pants and then our boxer's.
I looked at Kate and saw that she was mesmerized looking at Tom's stiff cock and I could bet 
that her nipples were stiff and the aureolaes were wrinkled, her legs were open and we could 
look straight up her legs at her pussy which gaped a little.
I turned my gaze at Shelly and saw that she was just as engrossed looking at my cock and the 
flickering of her tongue happened again. Obviously this was a sign of excitement.
Tom and I sat down and looked at the girls.
"Well," I said.
"Well what?"
"Don't you two have something to prove?"
"Ah. Well. If we must..." my wife said and stood and unfastened her skirt together with her 
sister. They let them drop to the floor and stepped out of them and stood half naked in front 
of us. I ogled at their cunts. Comparing them and now that they stood side by side I could see 
that there were some little differences. Not much but enough to tell them apart.
Shelly's legs were a little thicker were they connected to the hipbone than my wife's and my 
wife had a fraction of more bulge just above her cunt hill. But it was obvious that they were 
sisters.
Tentatively they took the few steps over to us and with a quick look at each other they turned 
around and sat on our laps. I reached out and cupped my sister-in-law's cunt in my hands and 
she shuddered as she felt my hand. She raised a little and stuck her hand under her and took 
my cock in her smooth hand and raised it so it pointed at her cunt's opening and there wasn't 
any need for any 'Sesame' to open it because she just sank down on it and just had to do a 
halfhearted lifting and than sinking down again to have me buried to the hilt in her pussy. It 
wasn't quit as snug as her sister's but it was tight enough to make me groan as she moved her 
hips back and forth a couple of times before she turned her head and looked over at her 
husband and sister. I followed her gaze and saw my wife impaled on my brother-in-law's cock!
My wife was fucking another man! The second man to enter her cunt! I almost shot my wad then 
and there at this sight. Luckily my thoughts and eyes were averted from my wife as her sister 
started to rise and sink on my stiff cock and I had to let my head fall back so overwhelming 
was the feeling of a new cunt surrounding my cock.
Shelly leaned back and rested her head the best she could against my shoulder. A low groan 
escaped her lips as she sank down, all the way down, on my love pole. She rubbed her ass a 
couple of times, making my cock rub all over the inside of her cunt.
"Oh my god, oh my god," she kept moaning as she continued her up and down movements on my 
cock. I sat in such a position that I couldn't do much to give her back any thrusts of my own 
but had to let her decide on tempo and length.
"Oh my god, Tom," she moaned, obviously not aware of the fact that she was fucking someone 
else but her husband. "Oh yes darling! Like that! Just like that! Deep in me! Feel me! Feel 
when I cum on your cock! Oooh!"
Her muscles squeezed my cock in several rapid contractions. This triggered my own orgasm and 
when Shelly was about halfway through her orgasm I added my groans to hers and shot rope after 
rope of hot sperm inside her milking cunt.
When our orgasms subsided we fell back and I heard that my wife and her lover also were in the 
throes of their orgasms and I looked over at them.
Kate had Tom's cock as deep in her as she could get it and rocked her hips back and forth as 
Tom pumped inside her. I only hoped that he didn't push her diaphragm aside letting his sperm 
swim up to her fertile womb.
Shelly squirmed on my lap and lifted herself off my not yet slack cock and a thick string of 
my sperm and her juices leaked out as she stood.
"Oh my god!" she said again. "That was quite a load! It's just flowing out of me! I must have 
something to dry myself with."
She hastily went out in the kitchen and came back with a roll of kitchen-paper.
"Do you need some?" she asked my wife.
"Mhm. I'm just as full!" my wife giggled.
They left us and sat down on their original places with the white paper sticking up over their 
thighs.
"Well," Kate asked. "Have we proved our case?"
"Oh yes. In the very best way," I said.
"Yes," Tom agreed. "There's only one thing that puzzles me."
"Oh?"
"Yes. When did you put in your diaphragm? I thought you said it was the last time last week."
"Yes. It was."
"Wh--what? You don't..."
"No. We want a child, don't we?"
"Of course, but..."
"And you Fred? Don't you and Kate want a baby too?"
"Yes. We plan to... Oh my god! You didn't?"
"Yes. We had to prove our case, but since I wasn't protected we thought that we would even the 
risk, no odds is a better word and that's why we went to the bathroom. Kate had to remove her 
diaphragm."
I could feel my cock again start to rise when I learned that my wife had not only fucked the 
second man in her life, but that he was the first to shoot a load of sperm inside her!
"I don't know what you say, Tom, but I think I would like to test it again. I'm not quite sure 
that we found out who have the best pussy of the ladies."
Tom agreed. And so did the sisters, our wives.
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