Monster Urge Mansion

The rest of Rainbow's friends stand around her, flabbergasted to what she was become. Disbelieving that one of their friends had become a mermaid. They had gotten used to seeing each other with pegasus wings or pony ears on top of the heads. But seeing Rainbow Dash having a mermaid's tail... it's driving them through loops.

When she sees that her friend was just standing that and looking down on her, an annoyed Rainbow Dash yells to all of them:

"AHEM! Can I Get a Hand Here Guys!?"

Being snapped out of their daze, her friends went into action. Rarity was the fastest to react who help pick Rainbow Dash off the ground and sat her down on a nearby chair. But once she sat down, everyone could see her mermaid tail more prominently who was just as awestruck as ever.

Twilight mutters: "H-How!? How Did This Happened!?"

"I Don't Know!" Rainbow yelled back. "One minute, I walking around on my feet and wondering where I can find a light for the basement? And the next thing I know, I'm Tripping Over Flippers!"

Upon saying that out loud, they realize that it sounds kind of ridiculous. Off in the background, Pinkie tries her best to hold back her snickering, although Rainbow still notice it.

"Well at least we know for sure that somethin' is up with this mansion" AJ remarks.

"Yeah, but I didn't expect something as radically different that this" Sunset responded.

Fluttershy then chimes by saying: "Yeah. We usually transform into something that is related to ponies, not fish."

"Well whatever it is, there is something here that did this to Rainbow Dash and we need to find out what it is before it could do the same thing to us."

And then Rarity suddenly thought of something. "Um girls. Even though I'm a big fan of mermaids and everything, but do you know a quick way on turning Dash back to normal?"

Obviously from Rainbow's expression, she also wanted not to be stuck as a mermaid forever. After quickly pondering, Twilight answers: "Well if it's anything that we went through at summer camp, we just have to get her away from the mansion's grounds and..."

"Mmmm..."

But before Twilight could finish, Dash began moaning and fidgeting. When they look at her, they could see her looking very uncomfortable and notice something slightly off about the tail. It no longer has the glossy sheen that it had a moment ago and it looks a bit dry.

"What wrong Rainbow?" Fluttershy asked concerningly.

Avoiding the urge to scratch her tail, Rainbow replies: "I Don't Know!? This thing feels like this thing is starting to chafe and getting really irritating."

At first nobody knows what was causing it. But as Rainbow's tail gets even more dryer and remembers that she is now part fish, Sunset realize the problem. "Maybe she needs water!"

When they heard what Sunset said, they quickly realize the same thing. Concern for her wellbeing, Rarity picks Rainbow back up and tells her: "Here. I know where the bathroom is upstairs."

"Thanks Rarity" Rainbow Dash complimented.

As Rarity carry Rainbow Dash away, their friends were still worried for RD. But since Rarity is with her, they feel that she can be ok. When Rainbow and Rarity disappear up the steps, Fluttershy soon asks: "So um... What do we do know?"

Twilight replies: "Like Applejack said; we now know that there is magic here that will cause use us to change."

"Ooh! Do think it will turn us all into mermaids?" Pinkie Pie asked with much intrigue.

"Well I hope not. Or else it will make searching this place infinitely more hard" Sunset replied. Even though Pinkie Pie was slightly disappointed, she could get behind her reasoning and she appreciates Sunset's smartness.

Twilight turns to Applejack and asks her: "Have you search the basement yet?"

AJ cross her arms and replies: "We would... but the lights don't turn on down there and somebody forgot to give us a flashlight!"

"Ops! Sorry!" Twilight quickly apologized. Twilight had the flashlight with her but since the lights still work for the mansion, she forgot to give it to somebody. She tosses the torch to Applejack and she doesn't look too upset about not getting sooner.

When she got it, Sunset then tells her: "I think it's best to team up with Pinkie Pie and Fluttershy. Just so you won't have to go down there alone."

"That's fine by me" she said. "Are you girls ready?"

When she heard that the basement was dark, Fluttershy imagines a scary image of a dark, damp cellar full of cobwebs and echoes that she will mistake for ghosts. Pinkie Pie on the other, since she doesn't know fear, raise her hand and eagerly proclaims: "I'm Ready!"

"Wait!" Fluttershy exclaimed. "Let me build up my confidence first, then I go!"

Seeing that needs to build up her courage, Sunset happily replies: "Sure Fluttershy. Take as much time as you need."

With everybody now knowing what their new groups are (Rarity with Rainbow Dash, Sunset with Twilight and Applejack is with Fluttershy and Pinkie Pie), they all went back to their separate ways and continue searching the mansion. Only this time they got a clue on what the mansion can do. Sunset and Twilight wondered back to the library. Even though they have other parts of the mansion that they could look, they feel like that they can think best while surrounded by books.

When they got there and close the door behind them, they let out their worries.

"Oh my gosh Sunset! What are we gunna do!?"

"We need to stay calm! We wouldn't be any help to the others if we panic."

"Yeah... You right."

When Twilight try to keep her cool, she somehow took the appearance that looks like she was worried. Hands were clasp together, eyes were closed and she was taking deep breath. She honestly looked like she was scared. Wanting to comfort her, Sunset walks over and gives her a soft hug. When she saw Sunset had her arms around her, Twilight welcomes it and softly says: "Thank you."

But once that was done, Sunset moved away from Twilight and continue to speak out her thoughts. "But honestly though, I didn't expected Dash to be turned into a mermaid. With us having Equestrian magic and all, I'd expected her to be turn into a pony."

But while Sunset was thinking out loud, Twilight started to feel a bit strange. She started to feel a tingle in her legs and it's like she can't move them both. She soon felt like she wasn't wearing any shoes and can feel the carpet beneath her feet. In fact, she was feeling a lot of carpet and she wouldn't "feet".

"Um... Sunset!"

"... Maybe centaurs but still."

"SUNSET!"

Hearing Twilight, Sunset turn around and says: "What is it Twilight?" But when she turns around, she was utterly petrified when she saw Twilight. No longer was Twilight the average teenage girl that she usually looks. No. Like Rainbow Dash, Twilight's lower half of her body was completely changed into something. Something... that was snake like?

As both girls look at Twilight’s lower body, they saw that it was a long and slithering snake tail. It was covering in purple scales and it looks so long that it could wrap around either one of them (or both at the same time). Twilight... had become a lamia- a person whose lower half is a snake.

"W-What! How..."

"I Don't Know!" Twilight cried out. "It just sorts of happened."

Confused, Sunset tilt her head and got a closer look. She was still blown away Twilight's smooth and scaly tail. She even feels a slight compulsion to touch it but it wasn't strong enough to make her do it. Sunset mutters: "Well... At least we now know that it's more than just mermaids"

But then Twilight spoke up again. "Sunset..."

Hearing the worried tone in her voice, she became concerned and replies: "What!"

"Behind you."

Confused, Sunset turn around and see what's behind her. However, nothing or no one was there. But after she turn, Sunset felt something shifted around on her back. It was like something is suddenly attached to her back and making her feel more weighed down. And then, in the corner of her eye, Sunset caught a glimpse of a feather. Becoming worried for herself, Sunset shot out towards the nearest possible mirror... finding that she has too large sun-red wings on her back.

Twilight was just as stunned as Sunset who were astounded that their transformations was happening so quickly without them noticing. Sunset's wings were colored bright red, almost in the same coloring of the sun. She even has a tail of feathers in the same pattern (but luckily, she still has her legs). As Sunset stare at her new wings, she was instantly reminded of Philomena, Princess Celestia's pet phoenix back in Equestria.

"Well... Uh... This is sort of familiar. Just... Not what I use to."

But as Sunset was looking at her new wings with the mirror, Twilight began staring at Sunset's face. She didn't know why. Just that suddenly, she couldn't help but to admire her beauty. Her soft cheeks, lovely eyelashes, her... kissable lips. Twilight's heart started racing and a strong urge began to manifest inside her.

Once she done looking at what happened to her body, Sunset states: "We have to report this to the others." But as soon as she pulls out her radio...

"WAIT!" Twilight shouted.

"What Is It!"

Sunset shot her gaze at Twilight, wondering on why she yelled out stop. But when she looks at her, she notices that something was off about Twilight. Her hands seem tense, she was taking deeper breaths, her sight was fixed upon her and it looks like she was almost sweating.

"Are you alright Twilight?"

Twilight didn't reply, only staring at her more intensely. Soon, with her new lamia tail, Twilight began to slither her way to Sunset. Sunset mind was telling her that she need to back off and possibly run away. However, as Twilight was getting closer, something was keeping her feet glued to the floor.

When they got of close to her, there was an intense moment of silence where nothing happened.

"Twi..."

But before she knows it, Twilight kiss Sunset on her lips. Sunset was shocked as her best friend was kissing her. Her soft lips, her arms wrapped around her back and a tight hold that wasn't letting her go. In a moment of realization and resistance, Sunset managed to break away from Twilight and push her back.

"Twilight, No! We can do..."

But before she could step, Twilight swing her tail behind Sunset's feet. She falls and Twilight caught her before she touches the ground. Trapped again within Twilight's arms, Sunset was left too surprised to speak.

"Sunset no..." Twilight muttered. "Let... Let me do this..."

Laying back on Twilight's serpent tail, Sunset only watch as Twilight leans in for another kiss. But as she watches her puckered lips lower towards her, Sunset too began feeling something inside her. It feels like her heart was getting tighter and a tingling feeling was lit within her stomach. The only time that Sunset felt something like this before was when she had a crush on a boy before. But is she feeling this now for Twilight. Sunset didn't resist when Twilight kisses her and began making out.

As Twilight is holding her like a lover, Sunset was questioning herself in her head on why she is allowing it. "Why am I doing this? This isn't like Twilight. I'm... I'm not in love with Twilight... Am I?" But as they continue making, Sunset slowly relaxes and opens to the kissing. "Am I in love with Twilight?" she thought as she began to wrap her arms around Twilight.

And then, when the kissing finally stopped, both girls pull their lips away and stare blankly into each other's eyes. They gaze into each other's souls as it seems like that they only have the other in each other's minds.

And then things began to get even more heated. Twilight's tail began to wraparound Sunset's body. Before she could know what was going on, Twilight tore off Sunset's cloths and leave her bare naked with her coil. Sunset body was hold tight by Twilight tail, leaving only her head and wings exposed. Twilight take off her own clothes. Taking off her t-shirt and her skirt, both girls are now naked, in the library and one clearly rapped around the other.

As Sunset was still wondering was going on, Twilight mutters: "Oh Sunset" before he leans down and hover her boobs in front of Sunset's face. Seeing those irresistible soft, round beauties right in front of her face, she latches on and began sucking on one of her tits. Twilight reacted as she feels Sunset licking and sucking on her sweet nipple that will cause pleasure throughout her body. Things got so intense that Twilight's tail got even tighter and Sunset's began flapping around unconsciously.

Eventually, after that moment of sucking, Twilight let loose her coil around Sunset so she can suck on Sunset's boobs. Both parties felt so much satisfaction and passion that they say each other's name.

"Oh Twilight..."

"Oh Sunset..."

When they got significantly aroused, they began to shift positions. Sunset could stand but Twilight's tail was still around her. It was like she was in some sort of snake pot and Twilight was keeping her in it. She had her arms resting on her shoulder while Sunset's arms were holding Twilight's waist.

Twilight says: "I-I'm Sorry Sunset. I don't know what has gotten over me. it just that... I..."

Both girls were silent for one another. Both know what she was going to say and both want her to say it. And then, when she builds up enough courage, Twilight confesses:

"I think I have fallen in love with you Sunset."

For a second, there were silence. She couldn't believe she said it. She doesn't know how she would react? But before she was about to get worried, Sunset smiles and brush her hand along Twilight's cheek.

"Don't worry Twilight" she said. "I... I think I am falling in love with you too."

Twilight's heart skip a beat as both feel overjoyed that they confess their love for each other. To show their love, both went back to kissing and making out again. Only this time they were even more closer. Like an extra set of arms, Sunset rap her wings around Twilight for an even hotter embrace. As their kissing was getting even more passionate, her serpent tail wrap around them tightly as both monster girls were making love.

Eventually, when they want to ascend to an even higher level of love making, Twilight went back on top of Sunset and Sunset was resting on her tail again. And then she began to doing something with her tail. At the very tip of her snake tail, she was fondling with Sunset's pussy and it looks like that she wants to insert it in. Sunset as more than happy to have a piece on Twilight inside her so she widened her legs and stretch out her pussy with her fingers. Seeing the welcoming pussy, Twilight quickly insert it in and both girls felt a new serge of pleasure.

Twilight could feel the insides of Sunset's vagina. Hot and tight, but cozy and moist. And for Sunset, she could feel every scale along her inner walls and she open the feeling with open arms. As Twilight began thrusting her tail deeper, both fall into ecstasy as they feel they were getting closer with each successive thrust. Hands holding onto the human parts of their lover's body as each thrust was getting closer and closer to cumming. Their only thoughts being that they don't want to do this with anybody else and want to do this forever with the partner.

Eventually, both girls reach their limit together and shout: "CUMMING!!!" in unison together. Sunset's sprayed juices was as clear as day (or night] and it shots out of the hole that Twilight pulled her tail from. But for Twilight, it was a little more overt. At the intersecting on where her human and serpent parts meet, there was a small hole that acts like a vagina. Thanks to the shape of her serpent half, her pussy did have the usually oval shape.

But for Sunset, it didn't matter what her lover's pussy looks like. When she knows where the juices were dripping from, she quickly licks it all up. Twilight did the same for Sunset so both girls got into a 69-position to satisfy each other. But since they weren't using their normal human bodies, things were a little more interesting. Twilight toyed with Sunset's feathered tail as she licks and Sunset was feeling Twilight's smooth tail. And as they drink each other's juices, they think that it was the sweetest thing that they ever had.

Once they were done, both lay on the floor and began to coddle. Their arms wrap around each other's waists and they were face to face smiling to one another. Meanwhile, Twilight lamia tail wraparound Sunset's legs while her wings wrap around Twilight.

"Wow... That was... That was perfect" Sunset exclaimed.

"It was only perfect because I got to do it with you" Twilight replied

Both girls chuckled to how corner Twilight's line was. However, that did not diminish their uncontrollable love that they have for each other.

"I love you Sunset."

"And I love you too Twilight."

"What did you say?"

"I love you Twilight."

"And I love you too Sunset."

Both kiss and hold each other tightly. As they were wondering what they were going to do next, Twilight mutters: "Let's be together forever.

"Yes... Forever..."