"Why must you act like a child?!" Princess Celestia yelled at her sister; once again they were in an argument about her sister's behavior.

"Why must you act like a bitch?!" Princess Luna yelled back, refusing to back down as always.

Celestia seemed taken aback for a moment by the swear. Luna didn't often use such foul language.

"Luna, I will not stand this. We are going to talk about this and you are going to listen," Princess Celestia said sternly, but with a hint of aggravation. Luna truly knew how to get on her nerves.

"Or else what? You will order me too? News flash sister, I'm not one of your damn subjects. I can do whatever the buck I want!" Princess Luna shot back before running off.

"Luna!" Princess Celestia called to her sister, but to no avail.

Luna ran into her room and slammed the door. She was never allowed to leave until they were done, but she had enough. She was tired of Celestia's crap and listening to it. Not this time. Luna was going to wait until the morning. She was not going to deal with it tonight.

She jumped onto her bed, then put her face into a pillow and screamed. It was all she could do. She didn't care if the guards were listening, she just needed to scream. Her eyes were red from crying and her breathing was heavy.

"It's okay, Luna. Just calm down," Princess Luna said in an attempt to collect herself.

She took deep breaths, she tried to think of something else, and she tried lying down, but it seemed that her bad mood wouldn't go away, and it was all Celestia's fault. She was the one who started acting up first. She was the one who wouldn't drop it. Luna tried to speak, but as always Celestia would never let her talk. So no…..she wasn't going to listen to Celestia. There was no way she was going to let her win this time. This could wait. It was not just about what Celestia wanted; Luna had a say in it too, and Luna said wait.

"I just need some fresh air," Princess Luna said as she trotted over to her window and, with her magic, opened it. "I just need to get away for a bit," she said.

It was common for her to leave the castle when she got really mad. It was her best way to calm down and to think clearly. Of course, Celestia never liked it when she did, because she never knew how long Luna would be gone for. Celestia would talk big about the dangers of going out alone, often forcing Luna to accept an escort, but Luna didn't care that she made her sister worry. She just needed a break from the castle. Plus, this time was Celestia's fault, so to Luna, it was payback. She grabbed a cloak from her dresser and put it on.

I won't be long. I just need some time to myself, she thought as she put the hood over her head. I'll be fine, nay, euphoric to be without any of those ineffectual guards. Besides, if Celestia knew, she'd once again have them watching my every movement, even of my damn bowels! she reassured herself.

I know how to take care of myself. Besides, who would even dare try to mess with an alicorn?

She looked at the window and smiled.

It's not like I am never coming back or anything. I will be back in a couple of hours, so Celestia won't even worry.

At least that was what she thought.

5 hours later

"Wake up, whore!" An unfamiliar voice said, making Luna stir half-asleep.

She was more fully woken up by a hard smack to her face, though she couldn't comprehend the feeling of it. She groaned as she started to crack her eyes open. She felt dizzy and nauseous and her head felt heavy. She tried opening her eyes, but when she did, her vision was black. No matter how many times she would blink, her vision remained the same. She wanted to remove whatever it was covering her eyes, but when she tried to move her forelegs, they didn't budge, apparently bound to her back. Luna tried moving her other limbs but found they were all unmovable, with her hind legs bound to her stomach and her wings also bound to her back.

She was suspended off the ground upside-down... Luna found herself struggling as she tried to get away from her bonds, but to no effect. It was at this moment she heard a chuckle, reminding her that someone else was in the room with her.

"What is this? Where am I? What's going on?" She asked the mysterious pony. She heard the pony chuckle again. She looked around, trying to find out where she was and who was there with her, but because of the blindfold, it was no use.

"Well...to sum it all up: You're in my dungeon, you are now my bucktoy, to be used whenever I please. And you will address me as master, you cunt!" He replied as he smacked Luna again, causing her to let out a yelp. She began pulling at her binds again and tried using her magic to free herself, but her horn wouldn't even light up.

"Ooh, do you like your magic inhibitor? It's a ring you put on a horn, and it prevents the user from performing any magic at all."

"Why?" Luna asked as her breathing quickened. "W-what are you going to do with me!?"

"It's like I said, you're going to be my bucktoy from now on," He replied as he pulled out his large cock, dripping with excitement.

She heard him move closer and felt the tip of his cock on her exposed vagina. Luna's body immediately tensed up. She tried to get away but her bonds made it impossible for her to move. His breath on her belly got warmer as he got closer. At this point, Luna got the clue on what he wanted to do to her and combined with not being able to see her attacker it made her writhe in terror.

"Please don't... I...I... please. Not that. Let me go!" Shouted Luna.

"Now why would I do that?" He asked playfully. He prodded her slit with his cock, but felt resistance from her hymen. His eyes widened at this realization. "Wait. Don't tell me...oooh you're still a virgin. But aren't you an immortal princess?" The stallion asked curiosity and lust in his voice.

"I never bothered to fool with love and I was young when I was sent to the moon. 1000 years takes up a lot of time, you know," Luna answered with a bit of snark to try to forget what he was about to do to her.

"So you've never had sex before?" The stallion asked.

Luna didn't answer that question. She felt ashamed to. But she didn't need to; her silence was all he needed to answer it. He chuckled gleefully. Not only did he have the princess of the night in his domain, but he also would be the first to have sex with her.

"Well, in that case, don't worry, I'll make sure your first time is... PAINFUL!" He cried as he rammed his cock all the way in, causing her stomach to bulge slightly.

"Ahhhhh!" She screamed. But he didn't stop. He kept on thrusting his hips into her.

"Stop please... stop... you're hurting me... please!" Luna cried. It was so painful and uncomfortable, she felt like she was going to split apart and that it was too big to fit inside. But it was very clear that he didn't care. She continued struggling with all her might.

"Struggle all you want, whore!" He yelled as he pulled his cock out to the tip, then rammed it back in. "Nobody's gonna find you!" The stallion shouted while thrusting.

"Please stop! Somepony help me!" Luna yelled as she began to cry from the pain.

"SHUT UP!" He yelled as he hit her in the face while continuously roughly pounding her cunt. "Never accept a drink from a stranger, whore!"

"What... what do you mean? I-i-i... didn't..." Luna didn't understand. What was he talking about? Luna tried to remember the last few hours, but besides the pain that was throbbing inside her over and over, Luna couldn't get a clear picture of what had happened, which only scared her more.

What happened to me? How did I get here? How come I can't remember anything?

"Oh Tartarus, your cunt is squeezing my cock, slut; I'm- I'm gonna!"

Her eyes widened at the realization of what was coming. He started picking up the pace by thrusting in and out more vigorously as Luna began shaking uncontrollably due to the pain, and a growing bit of pleasure that she hated just as much. Luna felt it coming.

"Please don't..." Luna whimpered, but it was already too late. She closed her teary eyes and tried to shut out the feeling of his warm seed invading her body. Once it was done, he slowly pulled himself out and stepped back, breathing exhaustedly.

Luna didn't know how to react. A part of her was feeling so full as the cum was leaking from her body. Yet...another part of her felt useless and empty as if she lost something. Celestia always told her to wait for the special one, for it was the first time that always counted the most, because as Celestia said, "once it's gone, you can't get it back.", so Luna was always careful.

Though, Luna was always curious about sex. She wanted to know how it felt and what was it like. Most said it felt good. Many said that, planned or not, it happens when it feels right. A few even told her that it was the most fun thing you can do in your life, but Luna was in no way having fun, It definitely didn't feel good, and it felt completely wrong. He took all that potential goodness away from her. He took away her virginity, something that she couldn't get back, and he took away the very fun of sex. But at this moment, she couldn't dwell on it; she needed to be strong.

She hated being stubborn, but she needed to build up some courage right at that moment.

"Get off of me. I won't be your toy or your pet. Nor would you be my master...you..you bastard!" Luna said defiantly through her tears, and the stallion simply smirked to himself.

He pulled his cock out and positioned it over her asshole." You're in no position to be telling me that!" He said as he lined his cock up with her ass.

"I still said it," Luna said flatly, barely keeping her resolve, but the stallion only chuckled.

"You'll accept your new life soon enough!" He tried to ram his cock in, but since Luna's ass rarely had any visitors, and never before any nearly so big, he could barely fit the head in. She was trying so hard not to scream, but it just hurt too much.

"Stop...it won't fit... please! I'll let you do it, but m-make it stretch so I'm ready first! " She begged, hot tears streaming down her cheeks from the pain.

"Do you honestly think I'll stop? Not a chance!" It took a few minutes of ramming but he did eventually manage to get his entire cock all the way in. He then began to thrust into her more violently than he did when he first started.

"Why! Why are you doing this to me?! Why?!" Luna cried as she continued to scream. "HELP! Sister!"

"Why am I doing this? It's not every day I get to buck one of you princesses, and haven't I told you? Nobody will find you!" He said, barely keeping a level tone due to the pleasure he was getting from her asshole squeezing around his cock.

"Let me go, you rapist!" Luna stated angrily to try not to think about what he said, and began struggling with more effort than before.

"BEHAVE, SLUT!" He yelled as he punched her in the face again while pounding her ass.

The punch felt a lot harder than the first one, making her yelp and lose control of her bladder. She tried so hard not to cry, but it was futile.

"...D-Don't go in so hard, please!" Luna begged as tears streamed down her face.

"Oh, if only you knew how much your tears turn me on right now!" He said before leaning over and forcefully kissing her, taking her by surprise as she couldn't see his snout coming. She let out a muffled scream, trying to break the kiss, but it didn't do her any good, and she was too scared to try biting him as his tongue probed the inside of her mouth.

"Mmmmm..." He groaned as he broke the kiss and continued to thrust violently. "I hope you're ready for the 2nd load!"

"Please...don't..." Luna's head was spinning. She couldn't comprehend anything anymore. The fact that she couldn't see anything did not make anything easier. A part of her couldn't believe that this was real. She was hoping it was nothing more than a bad nightmare she would wake up from.

"BUCKING TARTARUS!" He yelled and once again, he came, filling up the inside of her ass. But this time, he pulled out at the last second, sending the last few streams over her body, all the way to her face. Luna gagged as some of her kidnapper's juice landed on and in her mouth.

"Why...why...why did you do that? Just stop this. I'm begging you!" She said pleadingly, trying not to swallow any of his cum in the process, but not having the willpower as the nasty seed slid down. Her rear holes were more able to evict the seed, but she gave up on forcing it after expelling air he pounded into her rear made an audible, humiliating sputter, and left it to just dribble out slowly. By now she was utterly filthy, covered not only in his spunk, but her urine, both their sweat and a bit of their drool; she wondered if she'd ever feel clean again after this.

He slapped her ass with a hoof, making it noisily spurt out a bit of cum, and chuckled, then panted as he rubbed his penis on her holes, but seemed to be struggling to regain a third erection. He turned to her with a smirk before getting up. "I'll admit that I'm impressed; most cunts show signs of breaking by the end of the first day; your stubbornness will be quite the fun challenge! Well, I'm heading up to bed; we'll have more fun tomorrow! Oh, and don't worry about holding anything in, there's a bucket below your rear catching all the filth," he said as he went up the stairs to the door.

Wait, what? That was when she realized.

"Wait! You've done this before? Come back! What happened to them?" Luna asked as loud as she could, hoping he hadn't left yet.

"Once they were thoroughly broken, stallions came to me to purchase them, I have a reputation for breaking any mare. Now normally, I sell them off, but you... you're going to be my prized achievement!" He said, laughing as he left.

"WHAT! Wait. Come back here! Please let me go! Please help me! Somepony help! Celestia! Somepony!" Luna cried out, hoping that anypony would help her escape this hell.

He left her hanging there facing the ceiling for the rest of the night, as the fluids dried and matted into her fur.

Author's Note:

I never wrote a story like this one before...so don't expect it to be perfect. But I do hope you like it.