I was exhausted. At least half a mile I had walked through loose sand. My girlfriend claimed that we'd be almost there, but I didn't believe her anymore. Nobody in their right mind would build a home here. We drove fifteen minutes from the nearest town before we left the main road. Then at least another fifteen on a gravel road and at the end of that we walked. And of course I had to carry all the heavy stuff.

But fair is fair. Deanna, my girlfriend that is, was right. We took one more steep dune and then we saw it. A cute cottage, on top of another dune, looking out over a bay of blue water with a white sand beach. It had all the luxury, most importantly a huge fridge and air conditioning, all solar powered with a backup generator. There was a jacuzzi, canoes, a water bed and a huge flat screen TV. And the view was breathtaking, our own private beach leading to the clear water of the Gulf.

Swimming was the first thing we did, getting rid of all the sweat and sand on our skin. As well as all our clothes. That was one of the reasons we were here and not at some resort. Deanna likes her privacy so she can swim butt naked. I don't mind to be honest, she's beautiful with and without clothes. And the water was refreshing and soon we were just floating with colorful fish surrounding us.

Until in one second they all disappeared. When I looked around where they went I saw a pair of dolphins approaching us. For a moment I was scared but they were very friendly, nudging us with their nose and when we hugged them they took us for a ride, a very fast ride. It was a thrill, skin to skin with a dolphin going at full speed through our bay. Until finally they delivered us right back to the beach and then they were gone.

One look at Deanna's face and I knew she was as excited as I was. She pulled me on the sand and she said "Eat me!"

She's very sexual and she likes oral sex, a lot, so I knew what to do. I climbed on top of her, my face in her crotch and my member pointing straight at her mouth. She took me in before I had my own tongue on her. She tasted salty from the ocean water and when I dug into her eager snatch I found she was dripping wet inside as well. I started lapping it all up, using my fingers to stimulate her clit and in only seconds she came. I've always liked her thick cum, it almost squirts from her, but this time it was a shower, like she had sucked up a gallon of the water through her pussy. I could barely keep up but I knew she hated it if I let it go to waste so I filled up on the salty cum. I was rewarded with my own orgasm as she was expertedly draining me from my own goo.

When we finally relaxed I saw the smile on her face full of contentment I knew that choosing this place had been the right choice. We brushed the sand off us as good as we could before we tried out the jacuzzi and relaxed even more. Deanna couldn't stop talking about the dolphins, how powerful and fast they were. And how soft their skin was. We ended up hugging for an hour because I found her skin even softer.

We had brought food for the first two days and planned to catch some fish to eat the third day before we would head back to town to do groceries, enough for the rest of the vacation. But I wondered that night if the food we'd brought had gone bad, because my stomach was not doing well. Deanna was fine though, so perhaps it was all that ocean water I had sucked from her pussy. That's when she confessed it hadn't been just ocean water.

While swimming with the dolphin he had taken her on a whole different ride. They had been belly to belly, her arms around the dolphin and she had felt something entering her exposed pussy. It had to have been the flexible long penis of the dolphin and it was confirmed when it started pumping her and eventually filling her up. She had been on the edge herself and that's why she needed me so badly to eat her out. But now she worried that the dolphin goo was perhaps making me sick.

By now I could care less about what had happened, so sick I felt. She thought of calling an ambulance but our phones had no signal here. And helping me to the car was basically not an option through half a mile of sand. I just had to sick it out.

Weird things happened to my whole body, not just to my belly. Hair was disappearing from my skin and my body fat was redistributing to other places. But when my dick shrunk to ridiculous proportion it became clear I was slowly becoming a woman. Breasts started protruding from my chest, my waist got slimmer and my butt expanded. When morning came I was finally feeling better but when I looked in a mirror I didn't recognize myself. I had long hair, a delicate nose, full lips and high cheekbones. I figured I looked like what my sister would have looked like, had I had one.

Deanna was actually quite thrilled, she had never hidden the fact that she liked girls as well. And by now I was a full girl, a true slit had replaced my male parts and I had the impression she wanted to try me out. But first she wanted to name me. And just like that my name was now Sienna.

I was still larger than her and probably the same weight as before, just in different places. Because of that I didn't fit any of my own clothes anymore and there was not much of hers that would fit me. Her one piece swimsuit was one thing because it was made from spandex and it stretched enough to give me both underwear and support for my breasts. She had brought a latex mini dress as well, just in case we wanted to go out one night, and it fit for the same reason but it was even shorter on me than it had been on her. No shoes fit, just my own flip flops. We would have to make a trip to town and find me a new wardrobe. Or a way to revert me back.

But I saw the look in her face while wearing the one dress that fit me and I knew we wouldn't leave any time soon. She dragged me to the bed and her tongue was in my throat before I could protest. My own tongue was longer and more agile than it had been and she clearly liked that. When the kiss finally left me breathless she moved down and peeled the latex from my breast and started sucking. Nothing had me prepared for that. Electricity shot down through my body straight to my toes and back, concentrating in my crotch area. And when she rubbed a finger at the same time in that area I had my first female orgasm. There was nothing I could have done to stop it.

Deanna smiled, delighted with how sensitive my body was. Next thing I know her tongue is in my crotch as well and I feel like I'm ready for another high. I cried out for more, to fill me up with the toy I knew she brought, but she stopped, saying it's not for her to take my virginity with some tool, I will need a man. Just when I was about to tell her that I may be a woman now but that doesn't mean I'm into men suddenly, we heard a sound outside.

We saw our two dolphins out in the bay, twittering, and Deanna started stripping out of the bit of clothes she was still wearing. Then she looked at me and started pulling the dress from me until I was just as naked. Then she grabbed my hand and we ran outside, straight into the warm water. Somehow I knew these were the same two dolphins we saw yesterday and Deanna was scooped up already by hers. My dolphin pushed his nose against my body like he was smelling me, then he made a sound of delight and urged me to hold on. I went body to body again but it felt so different now. His skin was so soft and my nipples rubbing against it setting them on fire and just like a few minutes ago it went straight to my crotch.

We were speeding up and I was holding on tight, diving under a few times but never so long that I would panic. Suddenly I felt something prodding between my legs and then slowly it entered my brand-new vagina. I gasped as I started to understand that I would be losing my virginity to a male, just not the human kind. He went very slowly but steady, like he knew he was about to hurt me. And when it happened it was a sharp pain and I cried out for a second. He made a soft sound and it comforted me. Then I felt him move up and down in me for a few times until it became more comfortable. Then it became even pleasurable and I could feel him deeper in me.

I realized I was pinned on him and if he would dive now I could drown and do nothing about it. But he didn't and I started moaning now, never experiencing such intimacy. He started making soft noises and somehow I just knew I was his first as well, his first mate, either of the human or dolphin kind. It made me hot on the inside and I started pushing back against the snake inside me. And then I came and when I cried out I felt him fill me up. The stream was so powerful and it kept going and so did my own high. This just could not be possible, the pleasure more and more intense and when I couldn't take it anymore I passed out.

I don't think I was out for long as I was still pinned on him when I came back again. I had a very warm feeling in my belly and when I finally looked around I realized we were very close to our beach, my back was actually hitting the sand bottom already. And only now, knowing I was safe, he pulled out of me and swam back to the deeper water. I saw the second dolphin there waiting for him and together they swam off. Looking back I saw Deanna, on the beach already, with a huge smile on her face. She helped me out of the water and looking in her eyes I knew what came next. We laid down on the sand and in a sixty-nine position started eating each other.

I recognized the taste now and knew her dolphin lover had filled her up as well. I hesitated only for a second, knowing how eating her out had changed my life already so much. But when I felt her mouth on my pussy and her tongue probing my inside I just went with it and followed suit. For the next ten minutes we filled our bellies and we each had two synchronized orgasms.

When we finally were spent we walked to the jacuzzi and sat in it, embracing, and together we fell asleep. I don't know how long we were gone but based on the sun it probably was a few hours as it was definitely past noon. It was quiet, the jets had stopped. As a matter we couldn't even hear the air-conditioning in the cottage any more. My skin should have been wrinkled, instead it felt smooth, oily even, or was it slimy? I assumed Deanna had brought some oil in the bath to protect our skin.

It was quite erotic actually how our skin was slick when we rubbed against each other and it made me think of my dolphin. Deanna looked at me smiling and asked me finally if it had been good for me, and all I had to do was nod. Suddenly she was underwater with her mouth on my nipple and this time her fingers deep in my snatch. The feeling was amazing and took me over the top in seconds. Finally Deanna's face came up again and she challenged me to do the same to her.

I went under and was surprised how well I could see underwater. There must have been no chlorine mixed in the water. Maybe something else though as it gave her skin a silver sheen. I saw her nipple and the water reflection made it look very fat. I put my mouth on it and it felt as big as it had looked. Her reaction was instant, as sensitive as mine had been. I sucked harder and pushed my fingers between her legs which opened invitingly. Now I two-fingered her and her legs started trashing. I don't think she lasted as long as I had and I could feel her come by the pressure that built in my mouth as her nipple expanded.

When I finally came up again I wasn't out of breath like I had expected, so she really must have come real fast. We both were laughing now and I felt an incredible love for her, like I never felt before. You know honey, she said, I don't want to spend another day in my life without you. Let's get married. It was exactly what I wanted to hear, so I smiled, kissed her deep and said, yes, let's...

There was something about the water that kept us there but we both got hungry and eventually we climbed out. I was not surprised to see that out of the water her skin was still silvery and so was my own. By now we realized that the reason the jets had stopped was because the power was out. Our cell phones were totally dead so we couldn't call anyone, even if there were a signal. At some point we would have to drive to town.

There was a bit of chicken in the fridge that was still slightly cool but we both wanted fish. We had brought rods for that reason but I couldn't bother with that. Instead I went back into the ocean and dove under as soon as I got in the deep. The salt water was not bothering my eyes like it had before and I saw plenty of fish. But instinctively I knew they were not what I wanted until I saw a fat one, probably a foot long. It tried to get away from me but with a flick of my feet I chased him and grabbed him with both my hands. He was fighting to get loose and without a thought I bit him right behind the head and he was quiet. The taste in my mouth was delicious and I bit a few more times, tearing meat from the bones.

I suddenly remembered that Deanna was waiting for her share and I swam to the surface, only to see her close by. You know you were down there for more than three minutes, she said laughing. I didn't really believe her since I wasn't out of breath or anything, so I handed her the half fish. Only when she tore the remaining meat off the bones I realized how sharp her teeth were. And carefully feeling with my tongue I found my own just as sharp. We were changing again and it was no surprise when I saw her feet, then mine. Our toes were longer and there was webbing between them. I guess that's why I could have kept up with that fish when it tried to escape.

I heard a sound and saw my Bobby. I smiled as I couldn't remember naming him that but I knew that was his name. As sure as I knew Deanna's dolphin was named Skil. Bobby had a fish in his mouth that he brought for us. I kissed his soft skin, then licked his nose which he liked, before he let go of the fish. I took my share and gave the rest to Deanna.

When we finally felt we had enough we swam with Bobby, and this time we could keep up with him. When we finally found Skil we were at least a mile from the beach. Deanna hugged her dolphin and kissed and licked him. The dolphins had a ball and we played at least for an hour a game with no rules but with a lot of acrobatics. It slowly turned into a game of me and Bobby against Deanna and Skil. My God, my guy could jump and although I couldn't match it I did manage to come free out of the water. At some point I felt him under my feet and he torpedoed me straight up until I got perhaps ten feet out of the water.

After that it was a game of heights and Deanna went the highest of us all, pushed up by her guy. We did flips and I managed three full spins before landing back in the water. Then Bobby and Skil put up a show in synchronized swimming and jumping. I was in awe, so Deanna and I tried to mimic them. Not quite the same but swimming hand in hand with her I got warm in my belly and somehow we knew what move the other would make and match it. The guys loved it and soon the four of us were racing through the water in perfect harmony.

It was getting dark and we knew we were not ready yet to spend the night in the water. So the boys swam us back to the beach and we kissed them goodnight, knowing they would be waiting for us in the morning. Our feet had changed much more and we felt now like we were walking with flippers on our feet. Our skin was more silver as well with little dots of reflection which I assumed was the start of growing scales.

The cottage was dark by now without any power so we decided to go straight to bed. We made some love but we were so tired that we soon were asleep. I dreamed of Bobby, knowing that he would mate with me again until I was pregnant with his child. Then he would leave but check up with me once in awhile and later with our kid as well. And maybe in the future we'd do it again.

We woke up at the same moment, our bodies embracing and our tails curled around each other. I knew this is how it would be from now on, as we may mate with dolphins but we will live together as mermaids, raising our daughters together and making a family. I stretched my tail to its full length and we knew we had one more difficult task to perform before we could start our new life together. We had to drag and push ourselves out of the cottage across the beach towards the water that would be our home from now on.

It took half an hour before we reached the water and with one lazy stroke of our tails we were in the deep. We swam around in our cove, waiting for the dolphins. I was in heat and I knew I would be pregnant soon. Not quite what I had expected just a few days before but I couldn't wait to raise our daughters together with Deanna. Life is good!