Josh was a 22 year old guy having the time of his life. He was spending the last day of his 2 week long surfing vacation in a beachside resort in Costa Rica after graduating from college. He wasn't quite ready to stop partying and get a job, so he and a couple of his friends had decided to take a summer trip of riding waves, drinking, and chasing girls.
  

  
It was early on Sunday morning and Josh woke up earlier than his two friends and took a quick walk from their room down to the beach. The beach was empty, being so early, and he ran right down into the water. He loved swimming early in the day, it felt great and always energized him for the day ahead. As he was making his way out of the surf, he saw a single person walking down the beach. A girl, about his age, was casually strolling from down the coast up through the resort. As she got closer, he could tell she was not only his age but gorgeous as well with an amazing figure, a pretty face, and somehow, even on the beach, perfect long blonde hair. Since it was his last day here, Josh figured he had nothing to lose and as he stepped out of the ocean, approached her to introduce himself.
  

  
"Hi, I'm Josh, are you staying here at the resort?" She seemed to smile at his introduction, but he could sense there was something off about her reaction.
  

  
"Hi Josh, I'm Amanda. Do you always greet people this happily?" she said, half laughing.
  

  
"What do you mean? Im just saying hi. This place is great, isnt it?"
  

  
"Yeah....I'm talking about THAT" she said, while pointing towards at his bathing suit.
  

  
Josh looked down and his excitement of getting a chance to talk to this beautiful girl quickly became morbid embarrassment when he realized he was standing there with probably the biggest erection he's ever had poking out of his bathing suit. Not only was this embarrassing, but it felt....wrong. Yes, there was something not right at all about the way that this felt. What was it? He didn't know what to do. He didn't know what to say! "I....uh....sorry, I didn't.....Im sorry, I don't know what happened, this isn't normal."
  

  
Amanda sensed his reaction was genuine, or at the very least not intentional. "Hey, its okay, it happens" she said. "Just, uh, adjust it I guess, its fine" She turned around and faced the other way to give some token modesty, though she couldn't help but let out a giggle at the situation.
  

  
Josh reached down to try to adjust it, but he couldn't shake the feeling that something was very wrong. It just felt....different. He pulled the waistband of his bathing suit out and looked down, only to be horrified at what he saw. Where he expected to find his erect penis was.....some sort of sea animal wrapped around it. Pink and slimy, like some sort of sea slug, it completely covered his penis and was wrapped tightly around. Josh let out a scream that even surprised him! "What the....what is that?"
  

  
Amanda turned around to see what caused Josh to scream, but having lived in this town for the previous year as a research student, she sensed by now that she already knew what it was.

"I....WHAT IS THIS THING?  GET IT OFF! GET IT OFF!"  Josh was panicking.
  

  
"Alright, alright" Amanda said calmly.  "Here, let me take a look".  She came up close and put a hand his chest to balance, then slid the other hand just inside the waitband of his shorts.  "I'm just going to take a quick look, okay?  You're all right".  She pulled back the waistband, looked down, and confirmed her suspicions when she saw the creature.  "Yeah, thats what I thought" she said calmly.
  

  
Josh was surprised.  "You know what this thing is?  What is it?  How do I get it off?"
  

  
Amanda quickly set to work.  "We're going to have to get this off carefully.  Here....lets take these off" as she slid his bathing suit off to his ankles faster than he could object.  He was now standing stark naked on the beach in front of this amazingly hot young girl he had just met.  If he had thought earlier that his embarrassment couldn't get any worse, well, he was wrong.  The sudden rush of excitement caused a rush of sexual energy to his already engorged penis, wherever it was in this creature.  His face flushed red.
  

  
"Relax"  Amaanda said, again, calmly.  "This is going to feel weird, but Im going to try to get this thing off.  You have to be careful with these".  "You've done this before?"  Josh shot back in surprise.  "Yeah.  These things live in the water here.  They're really fascinating creatures but lets just focus on what we need to do right now.  I need you to relax and hold still, okay?"  
  

  
Josh tried to generate a response, but couldn't.  His head was swimming with arousal, embarrassment, and fear all together at the same time.  He didn't know what to do, so he let Amanda do her thing.  "Try breathing in and out slowly, it will help bring your heart rate down" she said.  "Alright, here goes." She said as she reached out and touched the creature that was firmly clenched on his penis.
  

  
As soon as she placed her hand on the creature, Josh received the most jolting, intense sexual stimulation of his entire life.  "Woah!"  he panted.  "What was that?  That felt so weird!  Don't do that!"  "I have to", she said back, "If you want this thing off.  Let me try again".  Again, she tried touching it, but as soon as her skin made contact with it, it responded almost as if connected directly to Josh's nervous system.  This time, he couldn't help but let out a moan.  "I'm sorry" was all he could make out to say.
  

  
"Wow, this one is really responsive to my touch.  I'm going to have to try something different."  She nervously looked around, over her shoulder, up the beach, then down the beach, then up the beach again.  There was no one.  They were the only two souls around for a mile.  She sighed.  "Okay, here goes.  I can't believe I'm doing this."  "Doing what now?" josh asked, nervously, trying to contain the sexual tension pusling through him.
  

  
Amanda reached behind her back and untied her bikini top, letting it fall and giving josh an up close view of her gorgeous, perky breasts and perfect pink nipples.  Before Josh could wonder why she was doing this, she reached down and used the bikini string to wrap around the creature a few times, careful not to make contact with her skin.  Then, slowly, she began to pull on it, trying to get it to break its grip.
  

  
Josh was hopeful this new approach was working, as she seemed to know what she was doing.  As she worked the string from side to side, pulling rather firmly on the creature (and his penis), he watched her bare breasts sway back and forth.  Then things took a rapid turn for the worse.  Josh began to feel that feeling.  That familiar, unmistakable feeling just below his stomach, deep in his testicles.  He was going to cum.  "Amanda..." he gasped softly.  "Im sorry...Im...Im...."
  

  
"No no!  Don't do that!  You don't want to do that!" She quickly shot back.  She quickly worked at the creature, pulling back and forth, trying softly, then tugging hard, then soft again, trying anything to get it to break before....
  

  
"I'm so....so sorry" he panted.  "I can't...I can't stop it"  
  

  
"Josh you can't!" she said, genuinely worried.  "If you do....."
  

  
It was happening.  That familiar feeling welled up inside of him.  The embarrassment, the pleasure, the fear of what was happening, this beautiful girl, it was all too much.  He couldn't stop it.  He held it down for as long as he could, but it shot up, pulsing, bursting forth, pulse after pulse after pulse shooting though him towards Amanda.  Absolute exctasy.  When the orgasm subsided, he put his hand on her shoulder to stabilize himself, unable to stand properly.  That was undeniably the best orgasm he had ever had in his life.  As he gradually came back around, he looked at Amanda to see what her reaction was.  Would she be mad at him for cumming all over her?  He guessed she probably would be, but when he looked at her, she seemed more sad than angry.  "Josh....I'm sorry, I tried".  He looked down and realized that she was holding that creature in her hands.  She got it off!?  He hadn't even noticed until just now.  It must have let go when he orgasmed, he thought.  He smiled.  She didn't.
  

  
"No, Josh....when you cum, they finish what they started.  They take your penis.  I'm sorry.  I know this is a big shock but its going to be okay".

To be continued...