Canterlot…..

Celestia and Luna paced the hall as two sets of eyes followed them. One pair belonged to a small pink alicorn with a bright pink mane with a yellow stripe in it. It was pulled back into a ponytail as her eyes bounced back and forth as if she was watching tennis. The other pair belonged to a smaller white unicorn with a dark blue and light blue mane. He looked up to the alicorn as he shook his head.

“Is it me or have they been like this for hours?” the unicorn hissed as the alicorn nodded.

“Aunt Luna, Celestia is everything okay” the pink alicorn spoke up breaking the silence.

“Thy needs to tell her” Luna looked towards Celesta. The older alicorn shook her head holding the picture up.

“We don’t know if it is her Luna. We need to wait!” Celestia stared at her sister as the alicorn shook her head.

“What if she is? Would you push her away as mother did?” Luna looked up at her with tears in her eyes.

“No. I would not drive her away as mother did. I would love to see the day when she and Nico could join us again.” Celestia looked towards the picture “I am going to rest for the evening. I would like some time to think. Goodnight dear sister” Celestia bowed to her before walking out of the room leaving Luna alone.

“Aunt Luna?” the younger alicorn spoke up causing Luna to look towards the couple.

“Cadence and Shining Armor. Thy did not see thou there.” Luna moved towards them.

“Is everything okay?” Cadence looked up towards Luna with a worried expression sitting on her face.

“Thy just learned some new information while out on thou trip” Luna smiled as she tapped Cadence’s head before walking off. Luna sighed as she started to walk along the halls glancing up at the sky.

“Sister is thy really leaving thou?” a small little bright blue filly walked out looking up at a dark purple unicorn with a white and black mane.

“Thy am. Thy has found thy heart in the sea.” She smiled as she looked down towards the filly “Thy will always be watching thou” The unicorn walked towards the edge of the boat smiling as she jumped over the boat and into the sea. The filly walked towards the edge watching her sister dive into the ocean never to be seen again. Luna shook her head trying to get her head out of the long forgotten memory.

Selene let out a soft yawn as she lifted the shell a bit noticing Ra and Za were sleeping in different corners. She slipped out of the shell noticing her body felt ten times better. Removing the kelp from her tail, she moved up towards the top of the pool. Peaking her head out she noticed the lights were still off. Moving back down towards the pool she grabbed her trident before moving to the library again. She pulled herself out of the pool removing the extra water from her body. Holding up her trident she silently cast a spell turning her tail into a pair of legs. Her mane was pulled up into a bun with a string of white pearls wrapped around her mane. A silver necklace appeared around her neck with a small trident sitting in the middle with a sapphire sitting behind it. Her fins changed into a large pair of white wings with transparent white and blue feathers. Her eyes glanced back towards her tail and noticed a silver trident in the middle of a ring of water as a silver crown sat under it. She tapped her hooves together before walking around the room. She could see the different types of books that lined the shelves. Nothing really seemed interesting to her. She looked up and noticed Twilight was standing on the stairs holding a mug of coffee watching. Selene smiled as she looked towards the unicorn walking down the stairs. She placed the mug of coffee down before picking up some scrolls from a nearby desk.

Twilight had Selene standing in front of her as she ran her hoof along her thighs. She was writing down noted as she went along “Your tail is gone. You have real working back legs” she held her back hoof out as she looked around taking notes still. Selene started to blush a deep shade of red as she felt her hoof run up her back leg to her tail.

“You have a cutie mark and even the workings of a full mare” Selene moved away as she coughed into her hoof looking at Twilight.

“By me a few dinners and take me on a few dates. Then we might see if you get to look at that” She was blushing as she used her wing to fan her face. She felt some magic around her wing holding it out allowing Twilight to see right through the feathers.

“How about we go somewhere and I can teach you about merpony magic” Selene smiled as she looked towards Twilight. She could see her eyes light up as she ran around grabbing some scrolls. She was about to grab some ink as Selene shook her head “Twilight we can get the notes later. I don’t have any squid ink to let you take the proper notes” Selene smiled as Twilight kept her scrolls in her hooves.

“Just in case” she grabbed her bags as Selene looked towards her neck. She noticed Twilight still had the shell around her neck causing a grin on her face. Twilight opened the door to the house as she walked out with Selene following her. Twilight took her across town towards the large lake where she placed her bags in a nearby tree looking towards Selene.

“So what are we starting with?” Twilight tilted her head as Selene walked into the lake allowing her magic to dispel.

“You need to join me. I am going to teach you how to swim” she smiled as she moved towards the edge of the lake.

“I don’t know. I can” she was cut off short as Selene moved her hooves towards Twilight causing the water to pick her up and drop her into the water. She watched as Twilight came up to the surface gasping for air.

“what was that for!” she shouted as Selene moved towards her tapping the shell around her neck. Twilight looked down noticing her legs shifting into a long tail as her eyes widen in shock. Selene disappeared under the water pulling on her tail to bring Twilight with her. Once they were at the right depth she let go noticing Twilight was holding her breath as her hooves were on her neck covering her head. Selene moved over and tried to pull her hooves away from her head.

“Twilight you need to move your hooves and breath!” She could feel her hooves lock in place causing her to sigh. She took a deep breath in as she forced Twilight to look up. She placed her lips against Twilight’s kissing her as she forced air into her. Twilight let her head go as she pushed Selene off of her huffing.

“What the Hay!” she shouted as Selene moved towards her.

“Your hooves were blocking your gills. If you hold your breath you will sink to the floor and will never be able to get up on your own.” Selene pulled her mane back as she grabbed Twilight’s hoof. She placed it towards the back of her neck allowing her to feel the small slits in her neck. Twilight looked at her in shock as she got closer. She could see small pink slits towards the back of Selene’s neck rubbing them softly.

“We are born with them on the back of our necks so enemies can not use them to weaken us in combat” Selene spoke up. She wanted to keep Twilight close as she was enjoying her hoof running along her gills. She looked up as Twilight had moved her hoof towards her neck. Selene moved as she swam around Twilight poking her in different places.

“The spell worked. Now when we were at the dock I cast a spell to give you a merponies body. The spell is stored in the shell around your neck. You can remove the shell when you want but the spell will only work for you. To make this transformation solid my father or mother will half to do that. Like I said I do not like watching ponies drown. I had to act and this was my first thought to save you.” Selene looked towards Twilight as she looked down to her tail.

“How do I change back?” her voice was shaky as she looked towards Selene.

“Tap the shell again to release the magic on your body”

“Another question how can I breath fresh water when we were in salt water?” Twilight looked up at her as Selene moved closer placing her hoof on her chest.

“Our magic is stored in our hearts. Unicorns do not exist as their horns are either damaged from outsides or broken from the caves and caverns most live in. Our bodies are used to the magic flow as we use it in our hooves except for guards and my family. we channel our magic through our tridents. Now that leads us to your question. That magic that flows around your body is constantly changing and adapting to the environment around you. it changes the way you breath depending on the water your in.” Selene was moving her hoof around Twilight’s body as she looked her in the eye.

“Okay” Twilight looked down as she noticed her tail was moving without her even instructing her to “How can I be doing this” she was freaking out as Selene swam around her.

“Its instinct. You just do it automatically so you won’t sink.” Selene stopped as she looked at Twilight’s tail keeping away from it.

“How is your tail? Za said it be a week before it’s healed”

“I’m healed but not properly. One can only do so much without the medical kelp and staff in the ocean” Selene smiled “But your tail is fine. Now to swimming. When going vertical and horizontal you want to swim like a wave.” Selene slowed her movements down as she demonstrated for Twilight “you can place your hooves out in front of you if you want” Selene looked towards Twilight as she nodded. Selene moved to the side as she let Twilight practice. Selene had to cover her eyes as she would crash into the walls of the lake. It took a couple of hours crashing into the walls before Twilight was able to get it after swimming around the lake keeping to the side of it.

“Baby steps” Selene giggled as she moved towards Twilight “Alright next lesson and this one will be easy” she smiled as Twilight nodded.

“And that is?”

“Cleaning your tail” Selene moved a bit as she picked her own tail in her hooves “All you need to do is lick your scales and if one pops out then it is bad. You can do this with your hooves” She let her tail go as she looked over at Twilight.

“Can you help me” Twilight looked towards Selene as she placed her tail in her hooves rolling over. Selene moved towards Twilight sitting her up straight.

“think about sitting and your magic will work okay” Selene smiled as Twilight tried to lick her tail frantically.

“Can you just do it?” Twilight noticed Selene turning red.

“if you were younger yes. You see in our culture if you came to me and asked me to lick your tail. In my eyes that would be you asking me to marry you. I would respond by letting you lick my tail before I would rub up against you placing my scent on you. that is till I marry you and place my scales on yours. Normally family members or coral can be used to get the dead scales off” Selene was trying her best not to stutter. She looked up as Twilight started to blush as she looked down.

“Sorry I didn’t know I” Selene placed her hoof on her muzzle.

“It’s fine. I can show you why” Selene moved her hooves along Twilight’s tail pulling it up to her as she started to lick her scales. Twilight started to turn a deep shade of red as she felt something warm and pleasant in her chest and her mind as she watched Selene. It was slowly faded as Selene stopped and smiled at her.

“That is why we use only let those we want to marry touch our tails. It’s very pleasant and it leads to” Twilight wasn’t thinking at the moment. She was running on pure instincts as she pulled Selene into a kiss. Selene was shocked as she felt Twilight press her lips against hers. She waited for a moment before pushing Twilight off of her looking away “To more adult things” Selene huffed as she watches Twilight turn red. She looked around covering her face as she swam up to the surface.

“I shouldn’t have” Selene spoke to herself before swimming up to the surface. She pulled herself out of the lake looking up noticing Twilight’s bags were gone. She replaced her magic on herself before walking away. She stopped as Twilight’s treehouse looking up at the windows mentally kicking herself. She turned and walked towards the center of town. Stopping for a bit she noticed the town as highly decorated with balloons and different colors of ribbons. She noticed the music was playing as different tables were filled with food. Her eyes scanned the crowd as she noticed Twilight and her friends standing at the water fountain talking. Taking a deep breath in she walked into the large crowd of ponies. She was swept away in the crowd as a pink hoof pulled her towards the fountain.

“Attention ponies! This is the newest pony! Her name is Selene lets make her feel welcome!” Pinkie was smiling as Selene stared out into the crowd causing her wings to spread open in shock.

“Pinkie what is this?” Selene looked towards the bouncing pony.

“This is for you. I planned a welcome party!” Pinkie was smiling ear to ear.

“Thank you” Selene smiled as Tears started to form in her eyes “I never had a party thrown for me. I only spent my birthday with my mother or father.” She blinked a few tears from her eyes as they floated above her.

“Neat party trick” Pinkie was chuckling as Selene smiled “Well enjoy yourself” Pinkie walked away as Selene stared towards the other ponies. She moved through the sea of ponies as she made it towards the punch bowl. Ra was sitting up against Za smiling as he had his hoof around her neck. Selene created a small ball of punch floating in front of her.

“You two look lovely dovely” she smiled as Za sat up.

“It’s nice to be away from judgmental eyes. I can spend some time with my husband” Selene rolled her eyes.

“Till we go see the other princesses you two are on vacation.” She sat in front of them sipping on the small ball of punch.

“It’s fine we can still be your guards dear. We can do like we normally do when you go out on an excursion to the shipwrecks” Ra smiled as Selene rolled her eyes.

“Didn’t need to know that” she walked off as she moved through the crowd. Her eyes were scanning the sea of ponies until she saw Twilight. Her eyes noticed the smile that graced her lips as she giggled. Selene kept staring as she watched her chat with ponies around her blushing as she waved her hoof. Rarity noticed Selene staring at Twilight causing her to walk over smiling.

“Dearie is everything alright?” Rarity spoke up causing Selene to look over at her.

“I’m fine. I am not used to mingling at parties” she started to blush causing Rarity to pull her close.

“Oh, darling it’s alright. You will get used to it. I bet your father will start inviting you to all the royal parties” Rarity smiled as Selene shook her head.

“To save face and to keep the noble riots down he does not invite me. I was supposed to be married to another when I was younger. I did not like him and he creeped me out. I told the guards they told my mother it went downhill I screwed the peace talks up. My brother was able to save it but the nobles were very vocal about leaving me in a cave to die” Selene looked towards the stone noticing Rarity was staring at her in shock.

“That…that”

“I know bad, horrid… I am used to it Rarity” Selene walked over to the table full of sweets picking up a few cookies before walking to the water fountain. Sat on the edge nibbling on the cookies grinning at the taste. Her eyes were watching as other ponies we talking amongst each other. She finished her sweets causing her to stand up to brush the crumbs off. She looked up and noticed Twilight was sitting between her friend and a random pony blushing. She didn’t know why but it caused something in her to chew at her. She moved over towards Twilight as her wings were fluffed up on her sides as she coughed into her hoof.

“I hope I am not interrupting something” Selene smiled as Rarity glanced over at her. She noticed Selene’s wings as she back up a bit.

“Oh, Selene. Rarity was just introducing me to Gold Bit here” Twilight pointed towards the stallion as he was staring at Selene.

“Oh, nice to meet you. I am Selene Star” she smiled holding her hoof out. The stallion reached out and shook her hoof softly before walking away.

“I didn’t mean to scare him away. I just wanted to know if you would like more training using your tail to swim” She glanced over at Twilight.

“I would love that. Just no more grooming okay” she smiled up at Selene “I am going to get some punch would you like some?”

“Oh that would be nice” Selene nodded as she watches Twilight walk off as Rarity walked over to Selene as Rainbow Dash landed beside her.

“Dude what is up with that” Rainbow was staring at Selene as she looked towards the ponies in front of her.

“Who is a dude?” Selene tilted her head before looking around “Do I need to find them?”

“No, I mean scaring the pony away like that” Rainbow held Selene’s head towards her.

“I wasn’t trying to scare any pony away. I just wanted to ask Twilight if she wanted more training with her tail as a merpony” Selene blinked as Rainbow sighed. She pointed towards Selene’s wings causing her to turn and stare.

“So what is wrong with them? I normally don’t have wings just fins” Selene blinked as Rainbow Dash sighed.

“Dearie when a Pegasus fluffs their wings up. It means they are jealous or angered” Rarity looked towards Selene as she placed her hoof to her chin.

“But I wasn’t angry” Selene looked up and noticed Twilight walking towards her. Her wings smoothed out a bit before flaring out to the side. She smiled as Twilight held the cup out towards her. Selene used her wing and waved it towards the cups drawing out the liquid in front of her.

“Thank you Twilight” Selene was smiling towards her as Rainbow Dash looked towards Rarity. Rarity then moved and pulled Rainbow Dash away from them.

“Dude did you see that!” Rainbow was huffing as Rarity nodded.

“I know but she doesn’t know how to be a Pegasus. I think we need to keep an eye on them” Rarity looked back as Selene was sipping out of the bubble of punch as Twilight was staring at her.

“So I was thinking. Maybe if you taught me in the tank in the library. I think it would be easier to practice at” Twilight was smiling as Selene looked towards her.

“I think so too. The lake was a bad choice but it was also the biggest for us to practice in. But I do have some other items to help you with your magic.” Selene kept her eyes on Twilight as she smiled softly.

“Well, I think that will be lovely. I am going to head back. I wish to write up my notes for the day.”

“Can I walk with you? I find out that large parties are not for me. I do love the attempt but this is something I need to get used to” She smiled as she walked beside Twilight her wings flat against her side. the tips of her wings started to turn pink as she kept beside her.