“So how are we going to do this mistress?” Libi says, a sultry look on her face as she walks towards Twilight, her hips swinging back and forth, “Will you push me to the ground and fuck me until I can no longer walk?” She press her body against Twilight, showing that she is actually is a head shorter than Twilight. “Will you use my throat as your own personal fuck sleeve?” She slowly runs her clawed hand down Twilight’s body towards the massive dick. “Will you bend me over and plow my arse until you could fit tennis balls down it?” Her hand reaches Twilight’s erecting dick, giving a light squeeze. “Or did you have something else in mind?” she finishes, before pushing her lips against Twilight’s neck, giving it a light kiss.

Twilight shivers from the demon's touch, and can feel her dick quickly becoming erect. But with a huge amount of self control, she manages to push the Libi away, surprising the demon.

“Wait, before we do anything let’s put down some rules!” Twilight orders, blushing heavily, as she grows steadily more aroused.

“Why does there need to be rules?” Libi says, frowning.

“Because there is somethings that I don’t want you to do, ok!” Twilight says, trying to ignore how erect her dick has become.

“Argh, why do you ponies have to make sex more complicated than it has to be… proceed,” Libi sighs, crossing her arms.

“First, no touching my vagina!” Twilight says, glaring at the demon, “After I remove the dick and you have gone back to the abyss, I want everything else to be untouched!”

Libi face becomes very irritated, “So that means no breast or butt fondling? Are you trying to make my job hard?”

“I guess you can touch them, but no touching or putting anything inside my vagina or butt!” Twilight says, her face going a very deep crimson.

“Fine, that’s is easy enough to follow,” Libi admits, frowning, “What else is there?”

“When I say stop, we have to stop, ok.”

“Fine, I am bound to follow whatever you say anyway,” Libi says, rolling her eyes.

“Also you must never appear in front of anypony else.”

“Ha easy, demons can become invisible to anyone that isn’t our master easily,” Libi says, snapping her fingers, causing her to glow temporally, “Although if someone sees you having sex with me they will just see you dick disappearing and reappearing as it goes in and out.”

Twilight hopes that nopony will ever see them having sex, but she makes sure to remember this. “That is all I can think about at the moment,” Twilight admits, “But I might think of some other things later.”

“Great,” Libi says, sarcastically, rolling her eyes.

“What about you? Do you have anything you don’t want me to do to you?” Twilight asks, being considerate.

Libi raise her eyebrows in surprise, “You are actually asking me if there is anything I don’t like? Ha, you are weird pony…” Libi pause as she thinks about the question, “I don’t like scat, or vore, or anything that involves me getting hurt, although I am fine with BDSM stuff, just not creepy hardcore sadist stuff, otherwise I am pretty fine with most other things.”

“Don’t worry, I have no plans to do anything like that,” Twilight says, shuddering at the thought of doing any of that, but she can't help but wonder what scat and vore is?

“Also if you try to kiss me on the lips I will rip your lips off,” Libi says, glaring at the Twilight.

“What, why?” Twilight says, confused.

“Because a demon’s first kiss is important, ok?” Libi snaps, glaring at Twilight, “If you don’t know why than you haven’t researched demons enough.”

Twilight frowns. “Fine, I had no plans to kiss you anyway,” Twilight says, planning to research this later.

“Good let’s get started then!” Libi says, with a click of finger her armoured bra and panty fall off her, hitting the ground with clank, revealing her perky C sized breasts and her small hairless pussy. She starts to approach Twilight again.

“Wait!” Twilight says, backing off slightly as she grows ever more erect. “Are you sure it will fit in?” she asks, looking at the small pussy.

“Don’t worry about it,” Libi purrs, continuing to approach Twilight, “I’m a demon remember?”

“But you're kind of small… also your breast are pretty small too,” Twilight notes, her back now to the wall.

This causes the demon to stop and glare at Twilight, “Well sorry for not being tall and hyper busty and curvy like some other demons, but sadly I come from mixed parentage!”

“You have mixed parentage? Who were they?” Twilight asks, curious.

“That… that is actually none of your business!” Libi snaps, stepping right up to Twilight.

“But…” Twilight tries to say, but is stopped when Libi suddenly squeezes her dick, causing her to gasp.

“No more talking let’s just fuck already!” With that Libi goes down on her knees and moves her face near Twilight huge dick.

Twilight gasps as she suddenly feels Libi’s tongue touch her nearly erect dick. Libi starts running her tongue along it while her two gauntleted hands expertly massages the base and the tip of her dick, causing Twilight to moan uncontrollably.

It isn’t long until it is fully erect. Libi notices this and lets the rest if her tongue fall out of her mouth, revealing that it is over a foot long! Her tongue then wraps itself around Twilight’s dick, squeezing and rubbing it like a small slimy snake, while Libi hands continue to massage it. Twilight continues to moan, gripping the wall as her dick because painfully erect, she feels like she could cum any second now. Suddenly Libi stops and pulls her head back, making Twilight whimper with need.

“Wow, it is even bigger when it got erect,” Libi says, admiring Twilight’s dick. She then looks up and laughs at Twilight, “Wow, you should see you face! It is just begging me to continue.” She suddenly grabs Twilight dick with one of her hand and starts rubbing it, causing Twilight to moan happily. “Don’t worry, I will make sure to fuck you until you are completely empty.” With that she plant a small kiss on the head of Twilight’s dick.

This is enough for Twilight. She moans loudly and cums, spraying it all over Libi surprised face, but she doesn’t stops rubbing Twilight’s dick, milking every it for all that it can give. By the time Twilight finishes Libi is face and front are now completely covered in cum. Libi lets go of Twilight’s dick, causing Twilight to slide to the floor, panting. Libi scoops up some cum off her breast with her finger before placing it in her mouth.

“Mmm, you’re very fertile Twilight,” comments Libi, savouring the taste, “I imagine you could easily knock up any pony with this.” She then looks at Twilight’s dick which is already hard again, “It’s virile too.”

She suddenly stands up, cum still dripping off her and walks over to the dick, which is long enough to almost reach her pussy from here.

“I was going to give you an amazing blowjob, but you cum too soon so I think we will just move onto the main event,” she says, as she lowers herself slightly and positions the dick against her already dripping pussy, “Prepare yourself, this is going to be nice and tight.”

Libi starts to push against Twilight’s dick, with what seems to be no result. Twilight is doubting whether that small pussy can even take her massive member, until the resistance suddenly disappears and it slightly slips in, causing them both to moan loudly.

“Amazing!” Libi moans, drooling slightly, “It is only a few inches in and it is already pushing my limits! I can’t wait to take the rest of it in!”

Twilight doesn’t say anything, she can’t, for the feeling of Libi’s tight pussy is overwhelming Twilight senses. Is this what pussy a feels like, it feels amazing! And she only has her tip in, she doesn’t think she will last the rest of the penetration. Libi seeming to notice this, suddenly wraps her tail tightly around the base of Twilight’s dick, causing Twilight to groan.

“No way are you cumming this soon,” Libi smirks, starting to lower herself slowly, “I want to enjoy this too!”

Twilight moans in pleasure and the need to cum as Libi’s pussy slowly takes in inch after inch of Twilight’s monster dick. Twilight can see the progress of her dick as it’s shape can seen in Libi’s belly as it goes deeper and deeper into her pussy. Soon Twilight’s dick is 7 inches in, but with still over a foot to go. Twilight is panting and moaning heavily now, she really wants to cum but Libi’s tail blocks any chance of that. Libi has stopped lower herself now, her bent legs look pretty wobbly, like she is about to fall over.

“I don’t think I can lower myself any lower without falling over! I feels like my legs are turning to jelly!” Libi moans, playing with her breasts a bit, “But there is still soo much dick left… I think I will just take the plunge!”

Before Twilight can think what she means Libi suddenly drops, landing in Twilight chest. They both scream in pleasure as the rest of Twilight’s cock slips into the tight demon’s pussy. Sadly for Twilight, Libi’s tail hasn't untighten, soon turning Twilight’s pleasure into discomfort as she is denied the chance to cum into the deepest part of the demon.

“If you want to cum Twilight, you gotta make me cum first,” pants Libi, as she rest her head against Twilight’s shoulder, “After that I don’t think I move for a while though, so you will have to do the work.”

Twilight, suddenly spurred by her new mission of wanting to cum, pushes Libi backwards causing her to fall on her back with a “Oof!” Twilight then grabs the demon’s small hips and pulls her dick out slightly. They both moan as they feel the dick scrap across the tight vaginal walls, then as suddenly as she pull out she suddenly slams her dick back in, making Libi’s belly bulge outwards slightly. Libi bends her head back and screams in pleasure at the sudden thrust(Twilight noticed that her dick seemed shorter in Libi pussy and resolved to ask later about it… after she fucks her brains out!).

Twilight moans as she feels Libi pussy tighten at the sudden thrust, she then pulls out a bit before slamming it back in again. She continues to repeats this, over and over again. Soon Libi is now hanging limply in Twilight hands with a slutty grin on her face and her tongue hanging out, moaning loudly every time Twilight thrusts in. Twilight is really starting to enjoy herself, every time she slams her dick in Libi pussy tightens nicely, she also enjoys the sight of Libi’s tits as they jiggle every time she thrusts in, she wishes she had a free hand to squeeze and play with them.

The only thing that would make thing better is if she could cum, but she doesn’t have to wait for long for this. Suddenly as Twilight thrusts in again Libi suddenly leans back again and screams, her pussy tightens painfully and… her tail lossens, freeing the trapped cum. Twilight screams as well as all the backed-up cum shoots out of dick, pouring into Libi. They moan as Libi’s womb fills up with cum, causing Libi’s stomach to swell up until she looked six months pregnant.

Twilight collapses when she finally stops cumming, falling on top of Libi. They both lay there panting, Twilight’s dick still firmly lodged in Libi’s pussy, keeping the large amount of cum trapped in there.

“Well, you made a demon cum. That’s pretty impressive for a virgin,” Libi compliments, rubbing Twilight’s head, like a lover would, causing Twilight to blush harder than she already is, she also wonders how she knew she was virgin?

“That was amazing though,” Twilight says, giving the demon a hug in return, “I never knew sex could feel so good!”

“Heh, you are sleeping with a demon here,” Libi smirks, wrapping her arms around Twilight back and tightly hugging her, causing their breasts to squeeze together, making Twilight moan a bit, “And I am very good at sex.” They lay there hugging for awhile until Libi looks down. “I see that you are still erect down there…”

“Heheh…” Twilight laughs awkwardly, realizing that her dick is still very much erect.

“Wanna continue?” Libi asks, giving Twilight sultry grin.

Twilight just stares at Libi for a while before nodding her head, “Yeah, that sounds good… but let me rest for a while.” With that Twilight lays her head on Libi shoulder.

“Yeah, I think I could go for a quick break,” Libi says, leaning her head back.

So the pony and the demon lay there, cuddling until they’re ready for round two...

Author's Note

My first published clop story.
Hope you enjoy.
Like and comment if you do.