It wasn't until we took a breather break, both floating on the surface, when she kissed me. Underwater the membrane closed off our mouths, but it pulled away as soon as we were in the air, allowing us to eat, and apparently to kiss. I was too shocked to pull away, still thinking I was my nerdy self, not believing such a beautiful woman would kiss me. But by the time my brain started working again, my own instinct had caused me to reciprocate the kiss, and a moan from Sheila told me she appreciated that.


The kiss lasted, and as we pulled our bodies into each other, we became one, our tails tight together, my hand on her scale-covered butt, and her hand somehow on my scale-covered breast. I wished that our tails were so flexible that we could twist them together, as I could feel my manhood stir. And the way she rubbed her belly against me told me she was having a similar experience.


Even when our kiss ended, our embrace did not, and as we floated around as one, I broke the silence. “I don't think I've ever felt as good as I do right now.” She laughed, “I know, right!” So she was indeed feeling the same. “I wonder if we could actually sleep like this”, I suggested, but she had different ideas. “Oh, we can certainly try, but not tonight. We have a reservation in grotto number nine.”


Wait! I had heard during the briefing there were a few grottos, but nothing about them having numbers, or making reservations. Sheila laughed. She had dinner last night with Sue, that's how she found out, and how she had been able to arrange it. Of course, she had no idea whom she'd share it with.


Sheila had some instructions on how to find the cave. We decided to start searching before it got dark. I was surprised we hadn't run into any of the other mermaids yet, but then again, the bay was seriously large. And add the third dimension, underwater, to that, and we may be just by ourselves for these three days. I didn't mind.


Talking about the underwater dimension, it seriously complicated the search for our grotto. Find the halfway point between the building where we started, and the entry to the ocean. Then roughly again halfway between that point, towards the ocean entry. The word roughly was critical here. By now we were looking at a stretch of perhaps three hundred feet, and when we arrived there, we were dealing with underwater depths up to thirty feet.


Search for a rock formation on the ocean floor, with nine evenly sized rocks in a circle. Then swim straight up towards the surface, and halfway you should be able to see a tunnel entrance. It took more than two hours before we finally found the right rock formation. Plenty of rocks spread in circles, sometimes even nine, but there should be nothing inside the circle. We had passed the correct circle a few times, but it had a rock in the middle, until finally that rock got annoyed with us, and whatever fish it was swam away.


At least the tunnel opening was now recognizable, because if you didn't start from below it, you'd simply miss it. It was close to dark by the time we swam into the tunnel, noticing almost right away a breathing tube, which proved we were going right. After a few good inhalations we swam on, noticing light at the end.


The cave seemed like it was man-made, or enhanced at least, and we saw a dry area where a meal was set up. Farther in the dry area there seemed to be a set of stairs, probably leading up to an outside exit. Or entrance I guess, if you were the person bringing the food.


We were very hungry by now, but we had to check out “the bed”. It was partly underwater, so we could swim into it, with a comfortable rubbery bottom and plenty of cushions in the same material. We could sit and eat in bed, which is what we did. It was semi-dark, in restaurant terms I'd call it romantic lighting. The food had been kept warm using standard heating elements, and was still very fresh. Had they kept an eye on us, and brought the food just-in-time?


It was clear we had more in common, as we both devoured the seafood. But then again, we were mermaids, right? At some point Sheila started feeding me, as she seductively took a small bite herself, then offered the rest to me. I did the same to her with the dessert, and eventually we were sharing it while kissing. Somehow, in all of this we had become lovers.


Although dessert is typically the end of a meal, it was clearly the start of hanky-panky, as she kept calling our more and more intimate actions. Sitting and laying between the comfortable cushions, all of our body except our heads underwater, we were two mermaids exploring each other. I was sorry my manhood was safely tucked away, it would swell up a bit, but it had nowhere to go.


There was a corner in the grotto where we had relieved ourselves earlier. A vacuum hose that we had to position on our front slit, and essentially it started softly sucking, and basically you had to let yourself go, and gone was the mess. Something you had to get used to, but in the end a very efficient system.


Now that we were lying down, Sheila asked if I was in the mood for something naughty. A bit frustrated by the sexual tension that had nowhere to go, I agreed, perhaps too quickly, but I think she was experiencing a similar feeling. And from somewhere behind the now dirty dishes she pulled out a snake. Bright pink, with a head on each side. Part of the service she had ordered the night before. “Do you trust me?” she asked, and although I was a bit worried now, I nodded.


With her finger she started rubbing the slit below my belly that I used earlier to pee, and slowly it opened up. Obviously, I had no feeling there, so I didn't feel it either when she pushed the head of the snake in. It went in for probably a foot, when I suddenly did feel it. Right in my rear. And she pushed it slowly deeper.


I gasped and she stopped. “Relax”, she said, “don't fight it. It will start feeling better soon.”

I had promised to trust her, so I nodded, and tried. I really tried to relax. Instead of going deeper, she started wiggling it inside me. And somehow it made it easier to accept. But, as she wiggled, it went a fraction deeper each time. She started kissing me on the mouth now as well, and as I enjoyed that, kissing her back, she took my rear deeper.


Then suddenly, she hit a spot, and although I didn't want to like it, a small moan fed straight into her face, and she smiled. “Now feel this”, she whispered. And suddenly a very slight vibration started deep inside me. Right on the spot that gave me a good feeling, which now started feeling even better. I couldn't help my reaction, but when the vibration increased, I started pushing back against it. And again the pleasure went up a degree.


“You're a mermaid, sweetheart. And this is your pleasure spot. Enjoy it!” Her voice was like magic in my ear now. I just learned something new about my mermaid body. And as the vibration increased again, I felt that same body react. My mouth clamped down on hers, sucking her tongue in, as I felt a new feeling bringing me slowly to a high. Like that feeling just before you orgasm. And with the way her body fitted against me, how her tongue played a game with mine, how her eyes smiled knowingly, I felt my tail slapping against hers, as I went over that unknown top.


It could only be an orgasm, but unlike I ever experienced. I knew my dick was swollen, but it could not expand any further. Yet I was cumming, maybe shooting my load, I couldn't tell. But what I could tell, it was not just in that one place, where it always happens. It was all inside my body, fast expanding from my new pleasure spot throughout my body. I could feel it in my toes, probably why my tail was trashing, I could feel it in my tongue, as I locked hers completely down. I felt it in all my fingers, as I tried to pull her body tighter into me. And my nipples were on fire, somewhere hidden behind my artificial breasts. I couldn't stop my moan turning into a scream, as I let go of her mouth to catch the breath needed for that scream. It echoed through the cave, and it sounded like a woman in heat. And I was that woman.


What was scary was that it didn't stop. Had I simply shot my load, it would have been over in seconds after that. But this new feeling kept going as long as the vibration was going. I started panicking now, my energy quickly draining. And Sheila must have realized it, as suddenly the stimulation stopped. I was still filled up with the snake, but that was a comforting thought, now that the onslaught had subsided. “Oh my god!” was all I could say, as I collapsed against her.


She didn't say anything, as she stroked my face, giving me time to come down. But after a few minutes I could feel her working on the part of the snake that was still outside my body. She was feeding that snake head into her own slit. I had the feeling she was more experienced in this, but I could still tell the moment she felt it entering her own rear. But she went fast, and as I looked past my breasts, I saw maybe an inch of the snake between our bellies. And as she squeezed it, I could feel the head swell inside me.


“We are one now”, she whispered, “we are connected for at least the next fifteen minutes. If you want you can ride me. Or just enjoy the intimacy.” And I understood. She was just as vulnerable as me now, neither of us capable of pulling away. Something you would only trust to a lover?


It just hit me. Was it possible that after maybe eight hours that we knew each other, that we were lovers? I pretty much loved every minute I spent with her. Or was it because I was a mermaid, something I have longed for so long? I had to be honest here. It was better than I ever expected, thanks to the fact that she was there, also a mermaid. Yes, I was attracted right away, my manhood had given that away the first minute. But the fun we had swimming together, as a pair, hand in hand, went much deeper. She wanted the mermaid-me as much as I wanted the mermaid-she. And now we had each other. Were one together.


I embraced her, and she followed suit. Our mouths found each other again, but this time it was soft and sweet. We wanted more ways to be linked together. Her eyes were closed now, and I did the same. I could suddenly feel her heart beating against mine, and they beat in perfect harmony.


Maybe we fell asleep, I really can't recall. But we opened our eyes at the same time, and I saw love reflected in hers. “I love you!” I said it before she could. But she nodded. “Yes. I love you too.” It was that simple.


Then she said, “Now make love to me.” And as I rolled us around in the bed, I was suddenly on top of her. The snake head was still locked inside me, so I started moving. We had a few inches to work with, and our bodies synced now as well. When I pushed, she pushed back, and when I pulled, so did she. It seemed to me that all the movement was happening inside her, and although my “dick” was artificial, the insides that were touched were real.


Soon I was pounding her, and she became loud with every thrust. I loved the way she was begging me to go harder, and so I did. And it was rubbing my own pleasure point again. As I fucked her, I was fucked myself, and I was in full control now. She wailed as she came, and she took me with her. Once more did I come, without the need for any vibration, but my high stayed as long as I kept pounding her.


She screamed, “Oh Yessss… sica! Take me! Make me your woman!” Jessica… that's me. The woman she clearly needed. It was so easy to accept that when you're in a continuous orgasm that I could prolong as long as I wanted. “As I am your woman”, I whispered in her ear. We both hit our peak now, even though it seemed impossible, but slowly I stopped moving, giving her a chance to recover as well.


Much later we were still connected together, not because the snake heads were stuck within us, but because we enjoyed the intimacy. That's what love does to you. As far as I remembered I had never told a woman that I loved her before. Nor did I ever tell one I was “her woman”. And for sure, never did a woman tell me she loved me. A night of many firsts.


We slept, never letting go of each other. I was surprised I could even sleep, normally on my back, with my legs spread wide. Forget about that with a fish tail. But it was like my body knew, this was the new me. In the morning we took a quick dive to wake up, and when we got back in the cave, breakfast was served. Best room service ever!


As we ate, we found a message. A challenge. A treasure chest search. Winning team gets an extra day as a mermaid. Some of the instructions talked about rock formations, and we both had the feeling we'd seen these rocks yesterday as we were searching for our grotto. No time to waste, other teams were probably on their way.


And so it was. Yesterday we did not see any other mermaid, now there were at least four around. And more on the way for sure. We were scanning the same areas, realizing that there were many more that could fit the bill. But, after an hour we found an exact match. Just no chest. I wondered if it was in another cave like we were in, so we started searching for an opening in the rock wall. And just like that it was staring in our face.


Hidden in a shallow cut out, not even a true grotto or tunnel, was a small chest. And when we opened it, there was just one piece of paper, in a zip lock bag. A coupon, not more, good for an extra day as a mermaid for the team finding this. We took the paper out, then closed the chest again, and hid it like it was never found. We went out to play with the dolphins, as the rest of the mermaids kept searching.


That night we all came together for a shared meal, and some complained about having found a chest but nothing was in it. We showed our price however, and although some were jealous, everyone was happy for us.


The next day, the last day for all but us, we played a lot of water games. Volleyball, basketball, a number of different races, and even a high-jump contest. Sheila and I did pretty good, but some of these mermaids were simply amazing. We both agreed to practice the jumping part in our extra day as a mermaid.


Then Sue proposed an interesting offer. She knew that we wanted another mermaid session in our second week of vacation. Why not join the next session, so we wouldn't have to change out of our tail. In essence, we'd be mermaids for seven consecutive days, which was a record here in MM Bay.


I knew I couldn't afford it, but I had learned these past days, and nights, that Sheila had quite a healthy bank account, and she was even more eager to pay for me also, now that we matched so well intimately. I left it to her to negotiate with Sue, but I was not surprised about two more nights in our “own” grotto. Nor was I when we won another day, for being the first ones to tag three dolphins in a hide-and-seek game.


What was surprising though was how easily I had accepted being Jessica, and being a mermaid. And how much I enjoyed mermaid sex. It was clear that Sheila was more dominant than I, but we both embraced it, even when I had an egg in my rear for a whole day, that she could turn on at will, with a little remote. I think I beat the high-jump record that day, but also scared the crap out of a stingray, when my tail started trashing suddenly. It never crossed my mind to reverse it the next day.


We both dreaded the end of day eight, as we had to take our suits off. But, another surprise, the suits would be ours, by the time we'd leave. Sheila had arranged that also, and I had the feeling it hadn't been cheap. It never crossed my mind that my life would be totally different, once we returned back home. Home was with her, and being with her meant being Jessica.


After eight days underwater, the gel around my nipples had settled in a solid breast shape, and not coming off, not even in the shower we took to wash off the fishy smell from our skin. And, thanks to the oily soap they had me use, any body hair I had left. Sheila secured a rubber sleeve around my manhood, that she glued between my legs. Jessica had no need for that.


There was a more human variation of the face covering and hairstyle, and somehow I felt relieved that no one would ever think of me as a man again. I needed a bra to deal with the higher gravity, or weight if you like, that my gel breasts were now exposed to. With matching panties and corset I had the curves belonging to a human female. And that made the summer dress that Sheila had ordered for me a perfect fit. I had to get used to the two inch heels on my new sandals, but it caused me to take smaller steps, and in a way it felt more intimate, like my tail had been.


Sheila loved my looks, but she promised me a spa day to deal with some details, like my nails and some makeup. She herself looked amazing, in a full length bodysuit in shimmering silver. With two more inches on her boots she was taller than me.


The walk back to the hotel was long. We both had troubles using the right muscles again, and doing it in heels didn't help. But, we walked hand in hand, at our own pace, and in that way we both enjoyed it. I wondered if she was still interested in me, now that I was no longer a mermaid, and maybe she thought the same about me.


We shared a lot of ourselves as well, now that we had life on land ahead of us. Sheila confessed she had made a ton of money through Bitcoin, and made a few good decisions after that in the stock market. But when she said she'd give up all her money to be a real mermaid for life, I knew that we both wanted the same. So I confessed that I would want that as well, but after this wonderful week I now knew that I wanted to be a female mermaid. And the way she suddenly put her arm around my hip told me I'd taken one of her worries away. She still wanted to know though, if I was also okay with being a female human.


I don't know why it came so easy to me, but I felt comfortable as a woman. I just hoped she would help me with all the things I didn't know yet. And as we stopped walking, we made an old-fashioned pinky-promise. As long as I was serious about being a woman, she would help me, emotionally and financially. And if I was still serious by the end of the week, she offered me to move in with her, and we'd both be happy.