Corruption: A Demon's Love Story

Twilight is eventually picked up by her friends before heading to lake when them. The lake is pretty crowded with lots ponies going for a swim, or relaxing on the shore line while their children swim.

“Crowded aren’t it?” Applejack notes, setting down her bag in a clear spot.

“The lake is plenty big enough for us all,” Rarity says, smiling and placing her parasol.

The Twilight’s friends start undressing, taking off their clothes and revealing their swimsuits underneath. Rarity is wearing a purple classy two-piece swimsuit that looks good on her, Pinkie is wearing a pink frilly one-piece swimsuit, Fluttershy is wearing a light pink simple one-piece swimsuit, Applejack is wearing a simple bikini top and some shorts, and Rainbow Dash is wearing a sport swimming suit.

Twilight finds herself secretly looking her mare friends up and down, taking in the sights until somepony speaks to her.

“Twilight aren’t you going to get ready?” Pinkie asks, noting that Twilight is still wearing clothes.

“Actually I thought I’ll just watch over our stuff,” Twilight says, hoping that they’ll will not ask her to show her swimsuit. Sadly Pinkie picks up on it.

“You hiding something aren’t you?” Pinkie says, a cheeky smile on her face, “Come take off the clothes!”

“I’m really not!” Twilight says, quickly backing off from Pinkie, who is approaching her with intent of undressing her.

“Get her before she can escape!” Pinkie yells, causing Twilight to get both her hands grabs by Applejack and Rainbow Dash.

“You can’t escape now!” Rainbow Dash says, holding Twilight still.

“This is really unnecessary!” Twilight whimpers, trying to pull her hands free.

“Come on Twilight,” Rarity says, smiling, “Your swimsuit can’t be that bad.”

Before Twilight protest anymore, Pinkie quickly pulls down Twilight’s pants and takes of her top, revealing her swimsuit.

“Wow, nice Twilight,” Rainbow Dash says, examining her swimsuit.

Twilight’s swimsuit is a two-piece, it is not too showy but it showy enough, the bikini top revealing as much of Twilight’s cleavage before it becomes indecent or sultry, all her back and stomach are exposed, and while the bikini bottom covers everything, it is still tight enough to show the shape of her butt.

“I didn’t choose it, Cadence got it for me when I turned into a alicorn,” Twilight mutters, blushing.

“It suits you Twilight,” Rarity says, smiling, “You look amazing in it.”

“But it’s embarrassing,” Twilight whines, covering herself up with her now free hands.

“It’s fine Twilight, honestly I’m not sure what you are worried about,” Applejack says, smiling.

“Now that’s over, let’s just enjoy the lake!” Pinkie says, grabbing Twilight’s hand and dragging her towards the water, the rest of her friends following her. It is time for some fun in the sun.

Later Twilight floats around the middle of the lake in a swim ring, her lower body dangling in the lake. She had enough playing with her friends and now is relaxing, also she got tired of other ponies checking her out.

“Celestia this swimsuit is embarrassing?” Twilight whimpers, holding her hands to her face.

“Really this is embarrassing, considering what you’ve done to me?” comes a familiar voice, from similarly nowhere.

Twilight looks around confused, until suddenly Libi materializes, sitting on the edge of her water ring.

“Libi?! What are you doing here?!” Twilight asks, surprised.

“Swimming, can’t you tell?” Libi says, smirking.

Libi’s skin is wet, causing the sun to shine off her beautiful black skin, her long white hair is also wet and the sun is making it sparkle like silver. She is also stark naked beside a locket, water dripping off her perky breasts and running down her slim body. She is also sitting in a way that shows off her pussy to Twilight. Twilight can feel her cock getting very uncomfortably erect.

“You're doing this deliberately, aren’t you,” Twilight complains, her eyes glued to the demon's body.

“No I’m not,” Libi says, smirking, suddenly she shifts herself, moving herself so her pussy is now right in front of Twilight’s face, “Now this is deliberate!”

Twilight finds herself unable to say anything, she can only just stare at Libi’s black pussy.

“It is kind of amazing to think that your huge cock can fit in this small hole isn’t it?” Libi says, pulling her lips apart and showing off her pussy.

“Yes it is,” Twilight says, bring her face closer to the pussy, temporarily forgetting that she is in a public place.

“You know they say that succubus’s sexual juices are addictive, although I’m not a succubus yet,” Libi says, smirking as Twilight brings her face closer to her pussy.

“Is that so?” Twilight says, not really caring and her face a mere inch away from the demon’s pussy.

“Do you want a lick?” Libi offers, still smirking.

“Yeah…” Twilight says, dreamily, her tongue sticking out and reaching out…

“What are you doing Twilight?” asks Pinkie, who has come out of nowhere.

“Eek!!” Twilight says, reflexively pushing Libi backwards into the lake, where she falls with a splash, sinking below the surface. She then turns to face a confused looking Pinkie.

“Are you ok?” Pinkie asks, concerned.

“Yeah sure, I was just daydreaming!” Twilight quickly says, blushing crimson.

“You look a bit red,” Pinkie says, pointing at her cheeks.

“Well it is rather hot today,” Twilight replies, desperately fanning herself.

“Maybe you should came and get a drink or something?” Pinkie offers, pointing back to the shore, where some of her other friends are now resting.

“Yeah, maybe I EEK!” Twilight suddenly feels a two hands reach under bikini top and grab her bare breasts, squeezing it tightly.

“Are you alright?!” Pinkie says, surprised by Twilight outburst and her shocked expression.

“Fine, never felt better…” Twilight says, trying to control her expression, but it turns out to be very hard as the hands continue to play with her breasts.

“You seem redder than before?” Pinkie asks, really concerned.

“I’m fine!” Twilight snaps, burying her head into the tube, hiding it from view. She has to bite back a moan as the hands playfully pinch and twist her nipples, “Just head back to the others, I’ll be there soon, ok?!”

“Ok…” Pinkie says, getting that Twilight wants to be left alone, “Don’t take too long alright?” With that Pinkie swims away, throwing a concerned look over her shoulder before heading off completely.

Once Pinkie is gone, Twilight looks behind her and of course sees Libi, giving her a smug look.

“Now isn’t that more embarrassing?” Libi says, raising an eyebrow.

“Ok, very funny,” Twilight pants, as Libi continues to play with her breasts, “Can you stop now?”

“Hmmm, no!” Libi says, while suddenly tugging her nipples forwards, making Twilight let out a high-pitch moan, “You see I resent being shoved into the lake like that, and this is just how I’m getting back at you!”

Libi presses her index finger against Twilight’s nipple, pressing until somehow it parts letting the fingertip sink into Twilight’s nipple, making her let out another loud moan.

“What are you doing?!” Twilight gasps, as Libi forces her fingers up to her first joints into Twilight’s breasts, making Twilight’s entire body shudder in pleasure.

“Pretty amazing right? You experiencing something that be only be experienced with a lust demon,” Libi says, sinking her entire index fingers into Twilight’s tits, “Nipple fucking, I could technically sink my entire hand fist in there, but that can be pretty overwhelming for beginners.” Libi starts thrusting her fingers in and out, making Twilight let out a sluty moan.

“No stop it! It’s too much!!” Twilight moans, holding her hands over her mouth, trying to muffle herself, “I’m going to cum!!!”

“Really?” Libi says, thrusting her finger harders.

“Nooo!” Twilight whimpers, if she cums she’ll ruin her swimsuit, she’ll ruin it, and that’ll be horrible.

With that last of Twilight mental strength, Twilight teleports away from Libi, accidentally leaving behind her swimsuit in her haste!

“Oh dear,” notes Libi, holding up Twilight swimming suit, “She’ll need this.”