The Silent Air Mattress

As I walked outside, I saw that my cousins and my sister had all collected next to my dad's car. Cassie and Isabella weren't wearing their glasses, so they presumably had their contacts in. They were all wearing oversized t-shirts, same as Cassie. These outfits accentuated their thighs well, a problem given that Sarah and Isabella both had really nice thighs. Sarah's were more toned, long, and graceful, whereas Isabella's were more plump, soft, and erotic.

As I approached the car, however, my dad came around the corner of it with fishing poles in hand, and said,

"Oh, Jake! I thought you were still sleeping. I wanted to fish at the pond, and the girls said they wanted to swim, so I said I'd take them! Why don't you come with us?"

He then noticed my swim trunks.

"Oh, looks like you already knew. Alright well hop in."

He then put the poles into the backseat.

Quickly counting how many people were coming, I asked,

"Is there really gonna be room for me?"

Puzzled, Dad looked at the car and the girls, and then said,

"Oh wait you're right. Hmm."

Right on cue, Cassie chose that moment to saunter over, looking more than a little pleased with herself, as she said,

"Of course we can all fit! I can just ride on Jake's lap!"

Dad asked, concerned,

"Are you sure? I could always just go fishing some other time."

Cassie waved her hand dismissively.

"That wouldn't be fair! It was your idea to begin with to go fishing! It's not that long of a car ride, and I can tough it out until we get there."

Dad shrugged.

"Okay, if it's alright with you all."

I was beginning to get both excited and trepidatious. I looked at Cassie, and she smirked at me, smugly.

I sighed.

"That's fine with me, I guess."

"Great!" Dad said. Everybody pile in!"

We all began getting in the car. Dad sat in the driver's seat, Sarah took shotgun, Audrey sat on the passenger's side with all the fishing poles as she held them, I sat on the other side, Isabella sat in between us, and Cassie sat on top of me.

"Everybody comfortable back there?" Dad asked.

"Yup!" Cassie said, wiggling around in my lap as if she were getting comfortable. My dick started to become hard, and she wiggled in response to it, feeling it up, which only caused it to grow harder. As the car started and we headed out, Cassie kept wiggling as if trying to get comfortable, and whenever she found an excuse to do so she would find new ways to apply pressure to my dick, such as leaning forward to show me some cows, or pretending to slip off of me for a moment when the road got bumpy.

After this, she pulled her shirt up to her waist, revealing her red thong string nestled between her perfect white ass cheeks, put my hands on her waist, and whispered to me, just loud enough for Isabella to hear,

"This shirt is making me slip. Hold me so I don't fall off."

I felt like this was totally nonsensical and bound to make others suspicious, but there wasn't anything I could do about it without making a scene, so I just held her while she gave me this torturous lap dance. Thankfully, most of the others weren't paying attention. Sarah was talking to my dad about fishing, and Audrey was looking out the window at the scenery, particularly the flowers. Isabella seemed to be listening to the conversation happening in the front, but every so often when Cassie would pull something like this she would look over at us for a few moments. Horny as I was, I desperately wanted to grind Cassie onto me, but I knew that if I did anything like that Isabella would catch it for sure, so I had to remain stock still while Cassie tormented me. Even the pale skin of her exposed lower back and the shape of the shoulder blades beneath her shirt looked absolutely tantalizing as her hips continued to rotate on top of me, and the smell of her hair right in front of my face was mind-numbingly intoxicating, but I was absolutely powerless to do anything about it. She couldn't remain moving all the time, however, so often she would simply remain still, pressing downward, her crotch pressed directly onto mine through our swimsuits. Just when I thought this constant stopping and starting was going to drive me into madness and cause me to start humping her in full view of Isabella, we finally pulled to a stop in front of the pond.

Sarah looked back at us and asked,

"You holding in there alright?"

"Yup!" Cassie chirped. "It was harder on me than I thought it was gonna be but that's okay, it was actually pretty fun!"

As she said this, she opened the door and jumped out, leaving me there with a full erection tenting my shorts.

Sarah's eyes traveled down, landed on my erection, and then rose back up to meet mine. Her face was totally impassive.

Lighting fast I jumped out of the car, eager to escape that gaze. My dad and the girls all got out next.

We all began discussing where we should go. Thankfully, this is the largest pond on the property by far, it was practically a small lake, so there was plenty of water for both fishing and swimming to occur without disturbing one another's goals. It was decided that Dad would go to the far end of the pond, while the girls and I would swim just off the dock. Dad left, walking out of sight, while the girls and I made our way to the dock. Cassie got there first, and as she did so she pulled her t-shirt over her head, arms crossed, leaving her in just her red thong and tiny red string bikini halter top, as she put her hand on her hip cocked to one side.

The rest of the girls followed suit, pulling their shirts over their heads. Sarah wore a tight v-neck green one piece that accentuated her long legs, narrow waist, wide hips, and pretty breasts. The back portion was exposed, revealing the impressive musculature in her strong back. Isabella wore a blue one piece with white polka dots and a ruffled skirt. As modest as that sounds, there was far too little fabric for Isabella's features, as most of the flesh of her huge tits were still exposed, the middle portion was tight enough to show off her impressive curvature, and the skirt did little to hide her sexy plump ass. Finally, Audrey was revealed to be wearing a fairly standard pink bikini with a blue design on it, but it still was flattering for her C cup breasts and athletic 5'6 build, and the colors went nicely with her green eyes and blonde hair. Her ass was larger than Cassie's, but it still had a very firm, rounded shape.

As they undressed, Audrey said,

"Jeez Cass. That suit's pretty risqué."

"Yeah yeah, well, I like to feel the elements on my skin, plus, I feel sexy wearing it."

Cassie leaned over, letting her tits hang down in her top, as she blew Audrey a kiss.

Audrey chuckled.

"Fine. I guess that's better than you skinny dipping."

I took off my shirt as well, leaving me in just my green swim trunks. We began jumping into the dark green water of the pond, swimming around as Sarah and Audrey began splashing each other.

Eventually, Cassie climbed back onto the dock and said,

"Aha! I'm the Queen of the Dock! No one will EVER depose me!"

Isabella, eyes burning with determination, began climbing up the dock.

"Ah, is this a challenger to my throne? Have at ye, blackguard! You'll never be able to defeat me!"

After waiting for her to climb up the dock, Cassie began wrestling with Isabella, as the two of them pushed each other back and forth like sumo wrestlers. As they got to the edge, however, Isabella fell off, pulling Cassie with her, and screaming they both plummeted into the water. As they did, Audrey made her way on top, proclaiming,

"Now I'm Queen of the Dock!"

Soon after Sarah climbed up however, and grabbing Audrey she was able to pick her up and carry her to the edge of the dock, before throwing her screaming into the pond as well.

Once her head broke through the surface of the water, Audrey began booing, and she shouted,

"Jake! Throw down the Tyrant Queen! End her evil ways!"

All the girls except Sarah started shouting "Jake! Jake! Jake! Jake!" as I began climbing up the dock. Sarah watched me as I did, a bemused look on her face. We grappled each other and began trying to push each other. I found this to be more difficult than I was expecting, as her height, core strength, and strong back made her a formidable opponent for my mere glamour muscles. I was entranced to watch her muscles ripple and her breasts and thighs shake as we wrestled, as she stared into my eyes, a playful expression on her face. Eventually, however, I was able to take her off guard, and turning swiftly near the edge I allowed her to fall forward, her face twisting into shock, as I hurled her off the dock.

All the other girls cheered, before Audrey shouted,

"Kill the new King!"

The girls began climbing the dock trying to take me down. Each of them presented a new challenge, and I was thrilled to get a front row seat to all their best features. None of them were really a match for me except for Sarah, however. Cassie I was even able to pick up and throw, like Sarah did to Audrey. Eventually, however, anytime that Sarah or I were the Monarch of the Dock the other girls would begin teaming up with at least one other to take us down, before turning on the other one and throwing her off.

Finally, while I was King and Cassie was trying to take me down, she let me pick her up, and as I was carrying her to the edge of the dock she whispered in my ear,

"Follow me and I'll show you something good."

Too late for me to process what she said, I threw her in the water. When her head resurfaced, she shouted,

"Boooo! What a lame King! You can throw me off but I bet you can't catch me!"

As she said this she turned around and began swimming away.

Horny and intrigued, I shouted "we'll see about that!" and jumped after her. She swam to the reeds a ways away at the edge of the pond, giggling, before swimming behind them.

Following her behind the reeds, my feet touched the shallows, and I saw that Cassie was facing me, standing still, her elbows up so that her hands were behind her shoulder blades.

Huskily, she whispered, "Ta-da!" and her top fell away, revealing her beautiful white tits.

They were round, perfectly perky, with adorable light pink areolas. Cassie put her arms out in front of her, beckoning me closer. I waded over to her, completely stunned and speechless. She shook her tits side to side as I approached, giggling at the face I was making. When I stopped right before her, she took my hands in hers and guided them to her breasts, encouraging me to knead them. I did so delicately, as if careful I might hurt them. She tipped her head back in smiling satisfaction at the sensation.

She then asked, cheerily,

"So? Was that not a good surprise?"

"Very good," I managed to murmur.

"You can do more to me if you want," she said. "We can have all kinds of fun together."

I simply grunted something vaguely approving in response. Whatever eloquence I am normally capable of was not available to me here.

"You could start by kissing me," she said, wrapping her legs around my waist beneath the water and holding herself up by my forearms.

Her sweet vanilla scent permeating my brain, I leaned forward and kissed her. I felt myself heating up as my mouth wrestled with hers, and my dick became instantly hard. One arm went around her back to hold her up, while my other hand continued to hold her boob, eventually transitioning to tweaking and pinching her nipple. She moaned girlishly at this stimulation. As we made out, I walked us forward, until we were on the bank of the pond. Laying her down, I thrusted against her crotch while she spread her legs to receive me. I kissed and sucked on her neck, causing her to gasp, and having moved her arms to hold my back she began clawing at it slightly.

I continued to grind into her, feeling like I might need to fuck her soon, when suddenly I heard a scream and a big splash. Disentangling myself from her, I jumped up and looked around. Hearing the scream come from the dock, I peered around the reeds and saw Isabella and Audrey on the dock, with Sarah's head bobbing in the water below.

Oh, right, I thought. They're still playing King of the Hill. I don't know why I thought it was something else; that scream was just especially loud I guess.

I watched the two on the dock begin wrestling and Sarah began climbing back up. Once she got back up, they all began wrestling together, grappling each other three ways, causing their features to tremble and jiggle as they shouted and pushed each other around.

As I looked, I felt fingers alight on my nipple and begin playing with it, while another hand was creeping around from behind into my swim trunks by pulling up the front of the waistband. I felt the slender fingers of that hand grasp my now softening cock and begin pumping it, causing it to grow again.

I felt Cassie's boobs pressed against my back as her husky voice penetrated my ear,

"Do you like looking at your cousins in swimsuits? I bet you do. I bet you even like looking at your sister in a bikini, you nasty pervert. They have such nice bodies, don't you think? They'd be so good for different things. Sarah would make for a great thighjob, Isabella would make for a fantastic titjob, and you could even use Audrey for an assjob. Mmm, anal with Audrey would just be perfect, wouldn't it? Of course, you can always just use me for whatever you like, but you can fuck my sisters too if you want to. I won't be jealous, cause I know that once you get a taste of me, you'll be addicted to me forever."

As she said this, and as her soft hand was jacking me off, every neuron in my body was exploding. I was hunched over like soft putty in her hands. I still couldn't process what was happening and my entire nervous system was overloaded. I knew that this shouldn't be happening but I didn't care, I felt so good and I was getting so excited I felt like I might explode. That feeling rose as I felt a tightening in my balls. I was going to cum soon.

"I'm...gonna cum," I whimpered.

Cassie's hand sped up, and as it did the intensity of my moans increased...until...until...

"CASSS-IEEE...! JAAAA-KE...!"

Audrey's voice called for us from the dock.

"Coming!" Cassie shouted back.

Just then I was about to cum, but just before I could, Cassie suddenly squeezed my cock HARD, and I groaned. She continued to crush my cock for several seconds, before finally letting it go. Putting her hand deeper into my trunks, she fondled my balls and gave them a little squeeze, before withdrawing her hand from my trunks completely. She pecked my shoulder blades with a kiss before redoing the straps of her top and wading out from behind the reeds into full view. I followed as well after adjusting my now softening cock, and saw that the other girls and my dad were waiting on the dock. My dad was holding a couple of fish in a net and the girls were drying themselves off. As I followed Cassie to the dock, I glared at her back, still wincing a little from the pain.

As we approached, Audrey asked,

"Where were you guys? You were gone for a while."

Cassie nonchalantly answered,

"We were hanging out on the shore. I wanted to show Jake something in the reeds."

"What was in the reeds?" Audrey asked.

"A secret," Cassie answered. "Maybe I'll show you next time."

Looking a little irked, Audrey said "You better" and continued drying herself off.

As we all dried off, the girls went back to the car to change into their spare clothes, and when they were done they came back to the dock so I could go change by the car. When I got there though, I discovered that the underwear that I had brought was missing. I checked around for a few seconds, wondering where it could have gone since I definitely remember bringing it, when it suddenly occurred to me what had happened.

That little minx, I thought.

Resigning myself to wearing basketball shorts without underwear, I returned to the others to let them know that we could leave now.

As we all approached the car, Cassie said,

"Hey can someone else sit on Jake's lap this time? I did it the first time."

"C'mon Cass, it was your idea," Audrey said.

"Why don't you do it?" Cassie inquired. "You're the shortest."

"Cause I don't want to," Audrey said. "Besides, I'm on pole-holdin' duty."

I flinched internally, half expecting Cassie to say something like, "Oh if you wanna hold a pole..."

Instead, Cassie turned to Isabella and said,

"Why don't you do it Bella? It's actually not that bad, I just feel like someone else should get a shot."

Isabella blushed, looking down, and then hurriedly said,

"I'm okay with that I can do that."

I sighed inwardly, certain that trouble was in my future.

As we got into the car, Cassie got into the middle seat, I got into the driver's side backseat again, and Isabella cautiously climbed onto me. She was wearing gray running shorts and a black t shirt as she sat onto my lap. Her ass felt incredibly soft on my lap, and her weight felt tremendously good on me. Her posture was as straight as it could be, but even so the shape of her breasts hung out in front of her, and from my position they even stuck out from either side of her back. Her short hair, swishing whenever she turned her head, smelled warm, like clean laundry. My horny, broken brain could not handle having such a soft, supple body on top of my lap, and as the car began moving so did my dick. I looked to Cassie beside me, my eyes wide as they signaled for some kind of help, but she just looked back at me with a devious smile and a fire burning in her eyes, as she pursed her lips and shook her index finger disapprovingly, seemingly aware of what was happening to me.

My God. This woman might actually just be the Devil, I realized.

I squeezed my eyes shut and tried to will my penis to become soft, but it took all of my willpower just to keep it from growing. Eventually, however, the road became bumpy again, and Isabella began wiggling around as she tried to balance herself, all while her jugs jiggled visibly.

"It can be hard to not fall off, so make sure to hold her in place Jake," Cassie admonished me, placing my hands on Isabella's ribcage, just beneath her breasts.

This caused Isabella to inhale sharply, and I began to feel her boobs bump against the top of my hands.

This was all I could take: my sexy curvy 19 year old cousin was bumping up and down on my lap while her boobs bounced on my hands. I lost all control and quickly my dick became erect, pushing up into Isabella's crotch. She froze, and then began wiggling about even more, seemingly to ascertain what it was she was sitting on that was making her uncomfortable. This only caused me to get even harder. Eventually she seemed to realize what it was. I cringed in embarrassment as she went stock still again. She merely remained in place, her crotch bouncing on my boner, as the car continued driving.

Eventually I leaned forward, and whispering in her ear I said,

"I'm so sorry."

Turning her face back towards me I could see that it was flushed, and she whispered,

"It's...okay."

I continued to be embarrassed, but as long as she was being understanding about the situation I figured it was okay. Towards the end of the car ride she began wiggling slightly again, presumably in a last ditch effort to escape my boner and find a comfortable way to sit, but of course this only stimulated me more and kept the problem going. My cock continued jumping up into her, eager to have more of her.

Finally, however, the ride did end, and when it did Isabella opened the door, got out, and immediately headed inside. Audrey and my dad began getting out as well.

Cassie leaned over and whispered into my ear,

"See? Now don't say I never do anything nice for you."