Sharing the Castle with Starlight Glimmer

Weeks passed and the castle was no longer quiet. The storm was still going and the snow was piling high. It was the kind of weather that most would prefer staying inside and snuggling by the fire. Twilight would have loved to read a good book in silence on a day like this. But the moans wouldn't stop.

"Spike, oh yes!! Harder!!"

The alicorn rolled her eyes and tried to ignore it. It obviously hadn't taken too long to find out about Starlight and Spike's little activities. They weren't very good at keeping it under wraps. Twilight didn't mind at first. It gave her more free time. Heck, it gave Rarity more alone time with that disgusting buffoon, Thunderlane. But it was getting very tiresome extremely fast. All the friends quickly found out purely from walking near the castle. Starlight had no subtly on who was plowing her and where.

Twilight was sitting in the living room, sipping some hot chocolate as she tried to focus on her reading. Her body was shivering slightly, even with a heavy coat and a warm fire. No, the cold wasn't getting to her, nor was the lack of sleep. Her ears were twitching as the moaning reached a near peak.

"Yes, cum all over me!!" Starlight screams were only muffed by Spike's draconic roars. Twilight's horn flared with anger and disappointment, and her book was tossed to the side. The castle walls were not meant to keep out this level of sound. "What did I do to deserve this?!" Twilight sighed in annoyance and buried her head in her hands.

Suddenly a purple flash landed on the table. The alicorn shivered at the deep breaths but dared not to peak until she was sure there was only one of them. "Hello?" She nervously asked.

"Twilight." Starlight stammered, covering herself with the tablecloth. "I must have miscalculated the teleporting spell again."

"No kidding!" The alicorn was still trying not to look.

"It was Spike's fault. He is a real beast!" The mare laid back. "Still pumping off to a few nudes I stole from Rarity! The only time I get some freedom is when he is jerking it off!"

"I don't want to hear that, Starlight. He's my brother!!" Twilight threw out her hands before blushing at the exposed cleavage and ass barely being hidden under the cloth. "And you should cover yourself better!"

"What? Don't like what you see?" Starlight teased, sticking her tongue out. "Or would you prefer the view a bit more..." She dropped the cloth lowering, revealing more of her naked and sweating body.

"Get your tits out of my face!!" Twilight roared, slamming her feet on the table. This threw Starlight off and into Twilight's arms. Both mares blushed at the position they were in. Starlight was laying her naked self on top of the clothed alicorn.

Twilight tried to push her off but quickly noted a few things. First off, despite the sweat, the multiple rounds, and the fact she blatantly asked to be covered just a few seconds ago, Starlight was remarkably clean. The second thing she noticed was the mare's body. Her breast was larger and softer, the ass was nice and firm, rubbing against her crotch. The alicorn shivered and groaned, not expecting a sensation like this.

Starlight didn't hesitate to use this moment. She leaned forward and kissed the princess right on the lips. Twilight was in shock, unable to resist. The mare's soft lips pressed against her and the warmth was so inviting. Her mind was melting at the touch. She had to force herself away with all her might.

"What was that for?!" Twilight growled, sitting the mare up and over her lap.

"Sorry, so much dragon... I was beginning to miss the taste of pony!" Starlight was breathing hard and her body was heating up again. "To feel a stallion's long and perfectly round cock." She ground her hips down, knowing exactly what she was feeling under the dress. "So big and ready for action."

Twilight groaned. "You really are a slut, aren't you!"

Starlight giggled and moved her face close to Twilight's. "Aren't you curious too? You want to know what has Spike so addicted, don't you?" She stuck out her tongue and licked the princess's cheek. "I'm a drug that won't stop. One taste and you'll be hooked forever. You want to feel me, don't you?"

Twilight was a mix of horror, disgust, and undeniable lust. Hearing them plow was so annoying, but she couldn't deny how hard it left her. The work was from her own brother no less, but she could stop being jealous of the fun he was having with this mare. Starlight was living in the castle rent-free and constantly tempting both of them.

The alicorn was royalty and the leader of the main six. She couldn't let herself be led astray, even by a temptress as great as her. But it was so difficult not to, especially hearing the lust she gave Spike all winter. Her heart was racing and her body was heating up. Her thoughts drifted off to the idea of her and Starlight alone in her bed.

Starlight could read her like an open book. Her body was so tense and she was clearly holding back. The mare grinned and slowly lowered herself down the body. Twilight watched in both anticipation and horror. Wanted her to stop, but too lusted to throw her off. The mare dropped down onto the floor, kneeling between her legs.

"Just let go, Twilight. We're all alone. Spike is going to be jerking off for hours." Starlight pulled her skirt up and rubbed her thighs. She smirked upon quickly finding the bulge in her panties. "And you haven't relieved this monster in a while, haven't you?"

"The other princesses say I should wait until marriage..." Twilight tried to hold her breath, but the mare was relentless. Her hands were so warm and gentle, massaging her thighs and slowly working their way around the ball sack. Starlight giggled, watching the tent grow with every inch she touched.

"What about a mistress?" Starlight whispered into her ear. "I could be that for you..." She puck her fingers under the binding. "I could help both Spike and you with all your needs. I could make your lives so much better, all you have to do is ask."

Twilight bit her lip and tried to ignore her, but it was hard not to. Starlight's warm breath on her crotch was so intense. The way her fingers were touching her balls. Her own cock was fighting to break free of its cage. She had to drive down the urge to give in. She was a princess. She was royalty. She couldn't let a lowly whore like her get to her.

Spike had clearly ruined all this mare's holes multiple times. Yet, she was still so willing to please Twilight too. It was as if Starlight had no limits or shame. Her body was already tainted by Spike's cock. So, why shouldn't Twilight join in on the fun? Her brother loved it, and so would she.

Starlight could see her resolve wavering. She had the alicorn hook and line. She slowly tugged the panties down and revealed the long horse cock. "So do you want me, Twilight--" She was stopped as Twilight slammed her mouth over it. The mare yelped in surprise but grinned widely at the victory.

"No, this is wrong! So very wrong!!" Twilight screamed through her lustful shuttering. She tried to resist the temptation but it was too late. Her heart and mind were telling her no, but her body wanted Starlight more than anything. "I am an alicorn, you are a mare!! This is so bad, but... Oh, Celestia!!"

Starlight was surprised at how easily the princess crumbled. The moment her mouth touched her cock, Twilight was a mess. Her hands were rubbing the ball sack more as she dragged her tongue up the length. She could feel the shaft pulse with every touch.

Twilight's head fell back and a moan escaped. "No, I must not... crave her."

"But you can't resist, can you, Twilight?" Starlight licked the tip and was hit with the taste of the alicorn. It was so sweet and strong. Her eyes lit up as she began to suckle the top, tasting the salty precum. Wrapping her large breasts around the base, she started pumping up and down.

Twilight moaned louder, her body growing hotter. It felt so good and the warmth was spreading over her body. Her wings stretched out and her horn was glowing brightly. "Damn it, stop! Your mouth is too amazing, Starlight!"

Starlight smiled, dragging her tongue over the slit, digging in. She sucked harder and massaged her breasts on the bottom. Twilight moaned out, her body tensing. Starlight didn't stop and kept licking the head, tasting the alicorn's cum. Throwing her ass back, she pressed her pussy against the table leg.

The princess couldn't handle it any longer. Grabbing Starlight's horn, she thrust her entire cock deep into her throat. The unicorn mare moaned in return, and her eyes rolled back. She could feel the long length go down her gullet. The pressure against the table was great too. Twilight groaned and pushed her head forward. Starlight's throat was so much warmer and tighter than her mouth.

Starlight grabbed the princess's hips and slammed her head down. The two worked together, as Twilight slowly stood off the couch. Despite the incredible cold outside she was now on fire. Opening her shirt and letting her breasts swing out. Able to breathe again, she began to pant and moan her loudest, giving in completely to the desire. She had no clue what came over her. It was as if she lost all control and had no care in the world.

"Starlight... I need this!" Twilight screamed, slamming her head back and forth. Her eyes were closed and she could only focus on the pleasure. The mare's throat was almost like a pussy. And it had been so long since the alicorn had felt such lust. She needed more, and her body wasn't going to rest until she had the mare's insides painted white.

Starlight could feel it, the alicorn was ready to blow. With a quick teleport, her position changed. Now the unicorn was right under the ball sack. Finding the pussy, she struck her horn inward, bit her teeth around the sack, and slapped her breasts hard around the shaft.

Twilight opened her eyes and gasped. Her spine arched and her pussy climaxed in the same motion as her cock. Flooding mare juices over Starlight's horn while peppering white seed over her breasts, stomach, and legs. Twilight couldn't breathe, the pleasure was too much. The room was spinning and the colors were mixing. She felt so weak and tired, but the high was far too much for her to want it to end. The only thing stopped her from falling was Starlight's horn still in her pussy.

Slowly she calmed down and the orgasm ended. Panting hard, she slowly removed Starlight and fell over the arm of the couch. Twilight lay there, trying to catch her breath and get her senses back. The unicorn crawled out and licked her lips. She rolled over the table and spit up, her body covered in another load of semen.

"See Twilight, I knew you would taste wonderful." Starlight giggled, wiping her face off. "Twilight..." She leered over to the alicorn mare and noticed her breathing had deepened and her cock straightening back up. Starlight's jaw dropped and the look of utter malice on Twlight's face. "Okay... looks like I might have overstepped with you--"

"No..." A wicked voice echoed from Twilight's mouth as she gripped Starlight's ass. She held her down and stood up, slowly grinning into utter laughter. "You're mine now, bitch!"

"Oh, shit!!" Starlight screamed as her ass cheeks were spread. The giant horsecock was slammed into her anus before she could escape. "Fuck!!" Her mouth was wide at the impact. It took a single push to mount the entire length inside her tunnel. Her body was shaken with the force and she nearly came from the sudden attack.

Twilight groaned in pleasure, her hips bucking and her tail flicking. "Yes, fuck yes!! Your ass is mine!!" The alicorn roared and started hammering away, her body moving rhythmically. Her large breasts jiggled and her balls swayed as she removed the rest of her clothing. Starlight's body bounced with every stride as the alicorn got into movement.

"Twilight... please..." Starlight tried to protest, but the alicorn yanked her up by the mane. The mare moaned louder and Twilight wrapped her neck with her arm. She squeezed it tight and held her in place.

"Take it, bitch!! Take my cock!!" Twilight's thrusts were stronger, her grip was rougher and her aim was dead on. It was as if the alicorn was in a trance and had lost all restraint. Every thrust was harder than the last and the grip on her mane was unbreakable.

Starlight moaned in pleasure, her ass getting destroyed. She didn't think it was possible, but Twilight felt so damn great. Maybe it was her longing for a horse cock after so much dragon jizz? Or could it be that this was just as good, if not better Spike's own anal beatings into her. No matter what the reason was, she couldn't lie. This was worth tempting Twilight to come out and play.

Twilight growled, feeling the tightness around her cock. She leaned forward and whispered into her ear. "Is this what you wanted, slut? Is my horse cock buried in your ass? Well, you got it, and you are never getting rid of it!"

"Please... please..." Starlight begged and moaned louder. "Fuck me!!"

"With pleasure!" Twilight smirked, pounding her harder and faster. The sound of flesh on flesh was deafening and the table shook and scraped. Leaning back, she spanked the unicorn's ass while fucking it. "This ass is mine! It's not for my brother's, but only for me. Understand?!"

"Yes!!" Starlight was drooling and her eyes were rolled back.

"Say it!!"

"I'm your ass slut, Twilight! Use me, please!" Starlight begged and pleaded.

Twilight didn't need any more encouragement. She was so close and the mare's ass was squeezing down on her. It was too much. Pushing the unicorn down against the table, she pumped direct and hard. Her balls were slapping and she was holding the mare's waist. "Not yet..." Twilight moaned. "Not yet...!"

Starlight couldn't hear her. Her mind had broken a while ago. She was panting and gasping, her entire body shaking with the impact. It was like a bomb was about to go off, and her ass would the crater. She needed it. She needed Twilight to finish and she wanted her cum. "Do it, Twilight! Please! Fuck me!! Cum!!"

"Damn it!!" Twilight cursed and pulled out of her and blasted white seed all over the room. Starlight screamed, her mind gone in the flood of pleasure. Her entire body was shaking and her vision was a blur. She couldn't stop the orgasm, and her whole world was melting. The unicorn simply lay there and enjoyed the hot semen raining over her.

Twilight fell onto the couch and rubbed as much as she could onto her breasts and face. It had been far too long since she had a climax that powerful. "Sunset Shimmer... I think you've been replaced."

"Who's that?!" Starlight rattled around in the white slick, falling off the table only to find more on the floor.

"Just a nobody now..." Twilight grinned and looked down. Her cock slowly shrunk with the last few drops. Despite this, Starlight crawled up and over her, cuddling with the alicorn. With both of them fading in consciousness the room turned black.

******