About two months ago, Phil Peterson completed an online survey for the hell of it. A few weeks later, he got a call and was informed that he had won a free trip to a Cancun resort for a family of four. Since it was just him and his son, Nathan, he invited his business partner and friend Jack, and his daughter Missy, to accompany him. Jack likewise wasn’t currently married, so it made sense for the four of them to go together.

The four woke up before the sun was even up to fly to Mexico for a week of fun in the sun. They arrived at the resort in the early morning, utterly exhausted and content to do nothing but sleep for the entire first day of their trip. The next morning, they awoke fully charged and eager to take part in all of the activities they could squeeze in.

Jack wanted to rent a jet ski, and not sure what to start with himself, Phil decided to join him jet skiing. Nathan and Missy were both more interested in checking out what was under the water, so they decided to go snorkeling. After breakfast, the crew split up and agreed to re-group at noon for lunch.

The white, sandy beach the teens were walking on was positively breathtaking. The sun sparkled off of both the blue water of the ocean and the sand, almost as if the beach was blanketed in diamonds. It was actually so beautiful that Nathan and Missy decided to walk down the beach a bit and take in the scenery a bit before going to the snorkeling place. As it turned out, though, they weren't the only ones enjoying the, um, scenery.

Nathan began to notice a disconcerting number of boys and, more distressingly, men, checking out Missy as she walked by them. He did have to admit, that if he were one of them, seeing Missy for the first time, he would definitely stare at her as well. The sixteen-year-old filled out her red string bikini quite well, so it really wasn’t a surprise to Nathan that every male on the beach was checking Missy out. Still, would it be so difficult for them to be a little subtle and not look like a bunch of drooling, horny idiots?

Missy and Nathan had known each other since they were kids, as their dads were friends and business partners, so they spent a lot of time together as they grew up. Nathan had just turned eighteen, and Missy had turned sixteen a few months back. Although Nathan was familiar with her form since she was young, it wasn’t until she turned sixteen and a few new friends introduced her to a new style of fashion that Nathan had begun to look at Missy as less of a little sister and more as the object of his hormone-fueled fantasies.

Missy was a hot girl with a personality just as attractive as her body. She had a stunning figure, combining both a sexually impressive body and a cute, adorable face. Her body type was that of a slim hourglass and her measurements were 35-27-35, Nathan guessed, as it’s not like he ever actually measured her. She was 5’ 4” and she had beautiful long, shiny blonde hair and a pair of fiery green mesmerizing eyes.

Both Nathan and Missy worked at their dads’ landscaping company when they weren’t in school, so she maintained a slim, athletic build, but not an overly muscled one, like a bodybuilder. She loved to show off her breasts, and her ass. For her slim build, her breasts looked slightly larger than average, and while her ass might have looked a bit small, it was clear that it was as tight as it looked.

Missy didn't mind having random guys staring and drooling over her. In fact, she rather enjoyed it. She was used to the boys at school staring at her. Even when she was just wearing a t-shirt and shorts with her hair in a ponytail for gym class, all the boys would look her over, even her PE teacher, so it was natural that guys would stare at her when she was walking around in a revealing bikini. She smiled at them and didn’t give them much thought, provided they didn't try to take a pass at her. There was only one guy she was currently interested in, and he was walking right next to her, which led to the one thing she wasn’t okay with.

A lot of the girls and women on the beach were also checking Nathan out. They were a bit more subtle in their approach, peeking over their books or sunglasses, but Missy could tell what they were looking at, and probably what they were thinking. Nathan was tall, had jet black hair, blue eyes, and was covered in muscles thanks to the heavy lifting he did at work for their dads. Missy didn’t hesitate to admit that she had a thing for Nathan, and she wouldn’t approve if any of the other girls on the beach attempted to flirt with him.

After about an hour, they finally went to the rental place and got their snorkeling gear. They had a quick lesson in the hotel’s pool and were repeatedly reminded to follow all of the safety procedures laid out to them during the lesson. The snorkeling area consisted of a small section of the beach that was buoyed and netted off from the rest of the ocean. This meant that they shouldn’t have to worry about things like boats or sharks, but it also meant that they might not get to see many of the more interesting sea life in the area.

When they were far out enough that they felt safe enough to break the rule to stay on the surface of the water, they smiled at each other and proceeded to dive underneath and explore the ocean floor. They would remove the snorkels from their mouths, dive down, and take a look at the interesting creatures and rocks found at the bottom of the water.

When their thirty minutes of snorkeling time was up, they dried themselves off a bit, returned their gear, and proceeded to meet with their dads for lunch. They ate quickly, though they spent over an hour taking turns talking about what they all had seen and done. They all talked excitedly about what they'd done so far, and what they wanted to do next

“Well, I have got to get back in the water,” Missy stated.

“Yeah, me too,” Nathan added, “I bet we didn’t even manage to see half of what the area had to offer.

“Well, don't spend all of your vacation down there; there's plenty to see and do on land as well,” Jack said.

“I think I'm going to check out one of the hiking trails myself,” Phil said “Just remember what we talked about: snorkeling only, no diving, understood?”

Both of the teens nodded and raced from the table towards the beach.

“Well, what about you, Jack?”

“Now that the kids aren’t here, I’ll tell you: strip club.”

Phil nodded.

“I think I’ll join you on that one.”

When the teens made it back to the place where they rented their snorkels, they noticed that the crowd had dwindled to about only a dozen people. There were some dark clouds on the horizon, but they appeared to be dozens of miles away, and the wind was blowing towards the ocean, not the shore.

As they approached the rental counter, Missy smiled at Nathan, who smiled back at her. They rented scuba gear and proceeded to explore the most far-off areas of the netted-off ocean. They became so engrossed by the amazing reef and the interesting schools of swimming fish that they almost went over their allotted rental time. Half an hour after they started diving, they realized how wrong they were about the clouds.

While Nathan approached the surface, he began to notice that the water above had gotten pretty choppy, and it was darker than when they first dived down. When the two fully surfaced, the sky was dark, and it was starting to rain. By the time they returned their equipment, the waves had become very rough, and the rain was coming down so hard that parts of the hotel had become difficult to see in the distance.

The two ran from the shore towards one of the shelters by the pool. The shelters that were dotted around the pool were basically just thatched roofs on four wooden posts that contained several lounge chairs. While that meant that they didn't provide much shelter, they worked well enough for the purpose of getting out of the heavy rain.

The rain was fairly warm, and they were only getting a light spray from the rain while under the shelter, so it wasn't that bad. Outside, though, the rain was coming down in sheets, and even though the mist that made it under the shelter was warm, the wind was starting to get chilly.

“Well, seeing as how we’re already soaked from being in the water, it wouldn’t matter if we made a run for our rooms. Whaddya say?” Nathan suggested.

Missy smirked and gave him a fake irritated look.

“What? Is getting stuck with me under a pool shelter really that bad?” she joked.

Nathan laughed.

“Of course not. It’s just that it’s getting colder, and we don’t know how long this rain is going to last, so I thought we might as well try to get inside so that we can warm up. Look, you even have goosebumps,” he commented as he stroked her arm.

Missy smiled. She did have goosebumps, but not because of the cold; it was because of what she was about to do.

“Well, if you’re feeling cold, I know a way for both of us to warm up.” She threw her arms around Nathan’s neck and pushed her body against his. “How’s this?”

Missy already felt warmer from the excitement alone of pushing herself against Nathan, and, if she wasn't mistaken, she could feel his body temperature rise as well.

“Come on, Missy, stop playing around,” Nathan said as he tried to playfully squirm his way out of Missy’s grip.

Although he sounded and acted playful, as if he was mildly annoyed at what she was doing, Missy had known Nathan long enough to tell that there was genuine uneasiness in his voice. She had been trying ever since she turned sixteen to get him to notice her as something other than his “little sister,” doing things like wearing more revealing clothing, making flirtatious double entendres with him, walking around in her underwear if they stayed over at each other's houses; nothing. Nathan was either blind to her advances, or he was intentionally ignoring them on account of their close friendship.

Now, Missy clearly had his full attention, and this time she was going to get what she wanted.

“I'm not playing around, Nate,” she said as she pressed herself tighter against him. In doing so, Missy could tell that Nathan’s cock was beginning to get hard, and he knew that she could feel it.

“Uh, Missy, it’s not what you think.”

She put a finger to his lips and let out a shush.

“It's okay to like this, Nate. I want you to like it,” she almost whispered into his ear as she pressed as much of her body as she could against his.

“But, you're-”

“Shhh,” she said as she again pressed a finger to his lips. “I've wanted you ever since I turned sixteen, Nate. I know you still think of me as a little sister, and that I’m too young for you due to our age difference, but I'm much more grown-up than you think.”

Missy could feel Nate’s cock getting harder and harder, and the sensation of it pressing against her belly made her sigh in gratification. She gently touched her lips to his and softly whispered to him at a level that was just barely recognizable over the rain.

“That's right, Nate, go ahead. Don’t think of me like a little sister; think of me as someone you can... fuck.” She let the last word escape her mouth alongside a sigh of pleasure, as his now fully rigid cock made him groan as it pressed against her stomach.

The younger teen looked up at him, a seductive smile on her face.

“This is what I've been waiting for,” and with her arms still wrapped around his neck, she pulled him down towards her and stood up on her toes to kiss him.

At first, Nathan resisted the kiss, but after a moment, he started to reciprocate the kiss, and soon enough, he was kissing her as if he were a man dying of dehydration that had just found an oasis in the desert. Because of the differences in their height, it made a certain degree of friction inevitable. Nathan's cock continued to press against Missy’s stomach. However, it had begun sliding up and down Missy’s belly as she rocked on her toes while trying to maintain their kiss, despite the fact that she was wearing a pair of platform cork wedge sandals.

Knowing that he was now interested in the same thing she was, Missy removed her arms from around Nathan’s neck and slid them down his arms and around his waist. She started playing with the band of his swimsuit, teasing both him and herself. Missy had had so many dreams and fantasies about what their first time would be like, but out in the rain, in Mexico, where people might conceivably see them; the excitement of the whole situation alone was almost more than she could handle.

She bent slightly and quickly yanked Nathan’s trunks down, which promptly fell to the ground and exposed what had to be a nearly 8” cock. Missy reached around and grabbed his ass as his cock, no longer hindered by clothing, slid against her wet skin.

“Mmm. It’s bigger than I expected.”

In truth, Missy had kept her expectations low, in order to avoid any disappointment from ruining such an amazing moment. As it turned out, she had been worried for nothing.

Missy stepped back a bit and wrapped the fingers of her right hand around his cock and she began to slowly stroke him. Nathan let his head lean back and let out a long groan before he leaned forward and tilted her head up so he could initiate a kiss of his own. His hands rested on her face for a few seconds before running down her neck, shoulders, arms, sides, before reaching around and grabbing her ass, lifting her up slightly and causing Missy to gasp in surprise.

He released her tight, little butt cheeks and slid his hands back up over her body to her breasts, which he cupped and squeezed firmly, but gently, underneath her bikini top. The touch of his hands on her body almost made Missy’s knees give out.

Nathan reached around Missy’s back again and undid the knots of her bikini, causing it to fall off of her, exposing her breasts and her erect nipples to his touch. The teen had to try even harder to keep from letting her knees make her collapse as she tried to anticipate what would happen next.

Just as he leaned in for another kiss, Missy turned her head to the side and kissed his neck repeatedly. Nathan followed her lead and began to kiss her neck as she did his. The pleasure running through her body was making it hard for her to get her hands to do anything, but eventually, she gripped his cock and began to slowly jerk it once again.

“So, what are you gonna do with this?" she teased him.

With a smile, Nathan placed one arm beneath Missy’s knees and his other around her waist. He picked her up and walked over to one of the beach chairs and gently dropped her onto it before climbing over her. She ran her fingers over him as hooked her left leg over her shoulder, her sandals and lower bikini bottom still on. She grabbed his hair and pulled him in for another kiss. Not even bothering to remove her easy-to-undo string bikini bottom, likely due to the fact that he couldn’t wait to fuck her, Nathan pulled Missy’s bikini to the side and aimed his cock at her pussy.

A look of hesitancy crossed Nathan’s face, which Missy quickly quashed.

“Do it, Nate!”

Nathan thrust forward and harshly penetrated her. Missy’s back arched automatically, and she cried out, “Finally!” Using her other leg, she pulled him down so that their foreheads were touching. “You have no idea how much I need this, Nate,” she whispered into his right ear, and then she gave him a quick, rough kiss on the lips and growled, “Now fuck me!”

Nathan pulled his cock out of Missy, save for the bulbous head of his penis before thrusting so hard into her that the chair slid backwards on the wet pavement.

“Oh, fuck!” Missy cried out as her eyes went wide in surprise.

Nathan began to slide his cock in and out of Missy, but less forcefully than his initial thrust.

“Shit, shit, shit, shit," she cried out with each of Nathan’s thrusts. Tears began to leak from her eyes as her built-up emotional and physical desires for Nathan finally got the attention they so desperately needed.

“I can’t believe we’re doing this, especially outside, in public, in a storm,” Nathan commented with ragged breath as his lungs ached for air.

“I don’t care about any of that,” Missy replied, her voice just as labored as Nathan’s. “All care about is that I finally get to have you.”

Nathan leaned down to kiss her and after hearing what she had just said it was as if he received some kind of boost, as he began to thrust into her both harder and faster than before.

“Oh, God! Fuck me, fuck me, fuck meee!” Missy cried out. It was a good thing that the rain was so strong; not only did it lessen the chance that they would be seen by anyone, but it also lowered the chances of anybody hearing Missy’s curses and moans of passion.

Neither of them even bothered to suggest changing positions. The two teens couldn’t bear the thought of Nathan pulling out of Missy, even for a few seconds. In addition, they knew that they had to be quick, as someone could run by even with the storm, which they had no idea how long was going to last.

“Dammit, I don’t think I can last much longer in you,” Nathan cried out.

Missy smiled, taking the statement as a compliment as if it was her that was sending him over the edge so quickly, and if he were with anyone else, he might have been able to hold himself back.

“Just make sure that you don't pull out,” she ordered him. “I want all of you cum in my cunt.”

As if the dirty words were the final straw, he came inside of her before he could even contemplate what Missy had told him to do.

“Oh shit,” Nathan gasped.

He wasn't the only one being pushed over the edge. All of the suddenness, the hard, impassioned thrusts combined with the long, long wait, all pushed Missy to her climax just as Nathan was reaching his.

“Oh, shit,” Nathan repeated, not in pleasure this time, but worry over the fact that he just came inside Missy’s pussy without wearing protection.

Missy’s eyes flung wide open as the warmth of Nathan’s cum flooded into her, and suddenly, all of the great sensations that she had been experiencing became just became exponentially better.

“Oh. My. GOD!” she cried as her body began to spasm in immense pleasure. All of her muscles clenched, as well as her pussy which tightened around Nathan’s cock and proceeded to squeeze a bit more cum from his cock.

Missy closed her eyes and began to let her body relax and go limp, every nerve in her body tingling, her chest heaving as she gasped for air. It wasn't just her, though. A drop of liquid fell on her lips and she slowly opened her eyes, seeing Nathan in a similar state as her. His head was dangling over her, dripping with sweat as he used his knees and forearms to steady himself over her.

Missy tried to scoot herself up the lounger and suddenly, sparks shot through both of them. Nathan was still inside her, and even though they had both climaxed, something still caused them to feel like electric shocks had sparked throughout their bodies.

“Oh shit,” Nathan repeated as he rolled onto his side next to Missy.

Missy wrapped herself around him and cuddled with him as the rain continued to fall.

“I can’t believe I just did that, I came inside of you. What if you-”

Once again putting a finger to his lips, Missy silenced Nathan.

“Relax, I’m on the pill. I wouldn’t risk it.”

“Then why didn’t you tell me?”

Missy gave him a Really? look.

“It would kind of ruin the passion if I awkwardly blurted out that I was on the pill while we were having sex. Don’t worry, from now on, you know you can fuck me without worrying about knocking me up.”

Nathan’s eyebrows raised.

“From now on?”

A devious smile came to Missy’s face.

“What? You think I’d only want to do this once? I’m sure that we’ll have a lot of fun in the future together. Wait until I show you some of the things my friend Harper taught me.”

From that second, Nathan knew that there was no activity to do during their vacation that would top what they had just done… but then again, maybe he was wrong.

Charles came just as the two teens began to separate themselves from each other. Despite the rain, his room’s window was close enough. The businessman was on vacation with his wife and daughter, who were both at the spa. He was going to rent a XXX video on the hotel TV, when he noticed two teenagers start making out under one of the pool shelters.

Figuring that they were too busy to notice him, he dropped his pants and began masturbating as the two teens started fucking. It turned out that he got a free show instead of having to pay for one.

“This is much better than pay-per-view,” Charles commented to himself.