The three sisters are very different from one another, but they are inseparable best friends. My wife, Natalie, is the oldest and fits the birth order stereotype: she's ambitious, focused, and generally gets something whenever she puts her mind to it. Natalie has shoulder-length blonde hair and a well-proportioned athletic body with long legs, which she loves to show off by wearing short dresses and high heels whenever the opportunity presents itself.
Amanda, the youngest sister, is super sweet and easy going. She has long blond hair and wears trendy clothes that show off her tall, slender frame making her look like a fashion model. Amanda recently graduated from university where she met her long-time boyfriend Chris. He is a nice guy who is a little on the quiet side, but he becomes more extroverted after a few drinks.
Jessica is the middle sister and is the wild child of the bunch - always pushing the envelope and up for a mischievous good time. She is shorter than Natalie with brown hair that frames her pretty face and comes down to the top of her large breasts. Jessica is clearly proud of her breasts and frequently wears low-cut tops. I love to get an eye-full when I can. Jessica has caught me on more than one occasion staring down her shirt, but she just smirks and gives me a wink. Sometimes she'll even lean forward a bit more to give me a bit more of an eye-full.
While she has never said anything to me about it, I think Natalie is aware of my admiration for Jessica's breasts - the sisters talk about everything and I'd be surprised if Jessica hasn't told Natalie about catching me peeking. Natalie doesn't seem concerned about the way I think or look at her sisters. In fact on occasion she will nonchalantly talk about Jessica's wild escapades - flashing crowds at rock concerts, skinny-dipping with friends, or her casual hook-ups with guys (and the occasional girl). And unprompted Natalie will tell me private things about her sisters, like how Jessica always shaves her pubic area whereas Amanda is like Natalie and prefers to keep a trimmed bush.
Jessica got married a couple of years ago to David - a tall, skinny guy who plays in one of the indie rock band that she adores. David is a fun, open-minded guy with the energy to keep up with Jessica.
A few years back the girls' parents were able to purchase a large cabin a couple hours from the city. They plan to retire there someday, but in the meantime it's only used for vacations and family get-togethers. It is becoming something of a tradition for everyone to meet up at the cabin on the weekend adjacent to Natalie's birthday in June - a good excuse to enjoy the nice pool together. I always look forward to it. Plenty of frozen cocktails are consumed and the sisters all wear skimpy bikinis. Their mom sometimes teases them about their lack of modesty, but they just laugh it off saying, "We're all family."
This year Natalie's birthday fell on a Monday and the family came to the cabin the preceding weekend for the usual festivities. All the girls were sporting new skimpy bathing suits. Even Natalie's mother adopted the girls' attitude and wore a suit that revealed a bit more skin. She is larger-chested like Jessica, and I was happy to steal glances of her cleavage whenever I could do so without getting caught. The girls gave her a lot of encouraging comments, and Natalie's dad didn't seem to mind his wife's daring suit. He was more attentive to her and he would sneak a kiss or a touch when he thought no one was looking.
Unfortunately work obligations prevented Natalie's parents from staying until Monday, so we celebrated Natalie's birthday on Sunday instead - grilling out, swimming, and lounging by the pool. Even though her parents had to leave, the rest of us decided to stay until Monday evening anyway.
Monday morning Natalie woke up happy and excited for her birthday. We had celebrated the day before, but she told me "Today is my actual birthday and it's going to be a special day."
Chris and I were sitting on the edge of the pool when David came out to join us, handing us each cold beer when he sat down. The early-afternoon sun felt great with our feet dangling in the cool water. We chatted casually while our eyes were on the girls at the other side of the pool as they bounced around excitedly in their small suits.
After a while the girls waded through the waist-deep water over to us wearing huge grins on their faces. I had a feeling we were about to be pulled into some scheme they were plotting. Natalie pushed my knees apart and came in for a deep, passionate kiss while the other two gave their guys the same treatment. Then they backed away and we waited with anticipation to find out what was going to be asked of us. Jessica broke the silence. "You know how us sisters talk about EVERYTHING?" she asked, really stressing the last word. "Well, we've been talking about your dicks." Jessica paused to gauge our reactions.
I glanced quickly at the other guys. David seemed to be taking this in stride, but Chris seemed shocked by what Jessica said. If those words had come from anyone else's mouth I might have felt surprised like him, but I've known Jessica long enough that it somehow seemed like a perfectly normal thing for her to say.
Jessica continued, "We each love our respective guy's dick so much, but we want to know which one of us has the guy with the best dick. Mom and dad left, so it's just us at here now, and we have a naughty idea. We want to have a contest to see which of you has the best dick."
Jessica paused again to give us a second to absorb what she had just said. Now even I was bewildered, not just because of Jessica's proposal, but because Natalie and Amanda seemed to be in on it.
Chris asked, "Just how do you plan to determine which of us has the best dick?"
Now Amanda chimed in, "We didn't think it would be enough to just see them or to measure them. We think we need to feel them."
"In the way they are meant to be used," added Natalie. "We need to hold them in our hands."
"And in our mouths too," added Amanda.
"And in our pussies," said Jessica excitedly.
After a couple seconds that felt much longer, I asked, "So are you suggesting that you would give us blowjobs and fuck us to figure out which of us has the best dick?"
The girls broke out laughing and Natalie replied, "No silly, that would be ridiculous," as if it was an absurd question. "We just want to hold your dicks in our mouths and stick your dicks in our pussies to feel them."
This response and the girls' laughter left me confused. I glanced again at the other guys to see their reactions, but I couldn't get a read on what they were thinking.
"But won't each girl just pick her guy's dick as her favorite?" asked David.
"We thought of that," replied Natalie, "that's why each girl must pick a dick that doesn't belong to her guy."
Amanda said, "And we think it's only fair the winning guy should get a prize."
"Yeah," said Jessica, "the winner gets to fuck the sister of his choice."
Natalie didn't wait for us to process their proposal and immediately started to lay out the ground rules. "Each girl will get two minutes to hold each dick in her hands, examine it, and put it in her mouth. There will be no stroking, with her hand or her mouth. The guy cannot move or touch the girl. Each girl will start with her own guy, of course, and then will spend two minutes each with the other two.
"Then we will repeat the process for one minute each with our pussies," chimed in Jessica.
"But no fucking," interjected Amanda, looking sternly at each of us.
"That's right," said Jessica, "no fucking. But I do think we need to help make sure you guys are nice and hard for the contest." And with that she quickly untied her bikini top and all in one motion pulled it off and flung it across the pool. Natalie and Amanda smiled and quickly followed Jessica's lead.