Mental Stimulation
“And that should be all for today.” Dusk Shine put down the last paper on the table in his throne room. Being the local prince meant that ponies in the region would send petitions to him, ask for advice, want him to settle disputes, and of course the occasional invitation to local events. But all of that was done for today, and now he had an afternoon to do... something. I probably should try to catch up on my reading. Or maybe Spines would like some quality time. Choosing the latter as plan A, Dusk called out, “Spines?” That's weird. She usually stays nearby when she knows I'm doing paper work. Maybe she went off to get a snack?
First he checked the kitchen and left empty handed. He checked Spines' bedroom over it, which netted him the same result. “Spines?” he called out as he entered the large library in the eastern wing of the castle. Row after row of bookshelves had been filled in full with copies of books from his old library and then some. “Spines?” An echo was the only response. “Where could that dragon have gotten off to? What if I needed her for something? She usually let's me know when she leaves. Oh well, I suppose that leaves me with some alone time.”
He walked through the library, heading towards one book in particular in the reference section. There had been a subject stuck in his mind for the last week, ever since he read that rather fascinating passage. Oh, the book it was from was nothing special, just another typical fantasy romance, but then something happened that Dusk just couldn't get out of his mind, no matter how hard he tried. In it, there was this minor lord who was said to be very cruel to one of her servants. He would always leave her private chambers covered in marks. News of this got out and others questioned her on this, seeing it as scandalous behavior. They were all shocked when the servant himself stepped up to defend her, as it seemed that they possessed a loving relationship and they both enjoyed what went on behind closed doors. Naturally, Dusk pushed the idea aside at first, as if a relationship like that could truly be mutual. But the idea of it just kept pushing its way to the surface nearly every time Dusk allowed his mind to wonder.
“Ah, here it is.” He pulled out his copy of Paraphilia: Debunking Myths and Simple Guides. With Spines out of the picture and Prism away, I finally have the chance to look over things without fear of interruption. Holding it under his wing, Dusk trotted to the top of his castle's tower, the room he had picked out to be his new bedroom.
***
It was a fairly simply room, designed for pragmatism rather than appearance. There was his bed pushed into a corner, a window along the far wall, and a desk for him to write or study in private; though in this case he chose to lay on his bed to do his research. Dusk closed the book and sat up, rubbing the bridge of his muzzle. “Nothing on why I got so attached to the idea but at least it gave me some practical information about it. The diagrams were quite insightful.”
Without warning two forelegs wrapped around his waist as the full weight of a pony pushed him down into the bed. He yelped and quickly cast an invisibility spell on the book. “Gotcha.” Before Dusk could protest the pony rolled him over onto his back giving him full view of his boyfriend, Prism. He wore the skin tight training uniform of the Wonderbolts, perfectly showing off his chest and strong legs.
“Prism, do-mph!” Prism's lips pressed against Dusk's, his tongue invaded Dusk's mouth, swallowing up anything Dusk may have said. Prism's hoof firmly planted itself on Dusk's chest, pinning him to the bed, leaving the prince to helplessly squirm under the pegasus. The surprise wore off and Dusk returned the kiss in full as both his body and mind melted. Prism being the physically dominant one may have seemed like an odd sight at first, considering that Dusk was clearly the larger of the two stallions. However, Dusk had come to fully understand how strong Prism could be in moments like this as he knew Prism had him completely immobile. Prism's body might seem thin at first glance, but it was solid and tightly wound; a spring that was always coiled, just waiting for the right moment to explode. Dusk reached up and rubbed his lover's chest.
Seconds ticked by and for a time, it seemed as though Prism had no intention of ever stopping. Dusk's lungs and mind fought one another – one wanting air as they began to burn and another desiring only to prolong the kiss and keep feeling Prism's tongue inside of him. Neither side won as Prism broke the kiss first, though he didn't pull back. Their muzzles were side by side, their breath rolling across each others cheeks. “I-I thought you weren't coming back to Ponyville until tomorrow,” said Dusk.
“We were let out early. Captain said there wasn't anything left to do that day.”
He licked the side of Prism's muzzle and took in his scent – it was the same scent that came after a heavy rain. Dusk was never sure if it was a natural scent or simply a result of working with the weather so often. Either way, he always enjoyed it. It reminded him of days spent indoors listening to the raindrops during a peaceful evening. Only this time, there was another scent coming from him as well. Dusk crinkled his nose as he started noticing it more and more – the scent of sweat and lots of it. “You didn't shower before leaving, did you?”
“Nope, I took off right after we were told that we could leave. I wanted to get back to Ponyville as quickly as I could and sleep in a good bed again.”
“Prism, I love that I got to see you early and please don't take this the wrong way but you kinda stink. You smell like day old sweat.”
“You don't seem to mind when you're the one that helped me get sweaty.” Prism gave a slow, sensual lick to Dusk's neck, starting at the bottom and going up. Dusk's body shivered as he released an involuntary coo sound.
Dusk's cheeks lightened, gaining a pink tint. “That's different and you know it.” He pointed to the door. “Clean up and then I want to hear how things went.”
“Fine. I'll try to get done quickly.” Prism jumped off the bed.
Dusk let out a sigh as Prism left the room. He held up the book as the spell faded, making it visible again. “Not tonight.” Three weeks had passed since Prism left to join the Wonderbolts' training camp and talking about this strange new fixation would not be appropriate for boyfriend's first night back. He walked over to his desk, opened the drawer, and put the book into it. Maybe tomorrow I'll talk to him about it, after he had the chance relax and settle in. As Dusk walked to the bed, he turned back the desk, thinking of the book once more before shaking his head to clear his mind.
***
As Prism said, it wasn't long before he returned, standing in the doorway with his mane still a bit damp and clinging to him. Dusk would try to dry him the rest of the way, if he didn't prefer it like this. “Hey, um, it's not too late to tell the rest of the guys that you're back. If they're free we can put together a little party.”
“Nah.” Prism walked over to the bed and flopped down on it, spreading out his wings as he relaxed. “I wasn't even going to come over here at first. Thought about going straight home and just passing out for the night. But, I know you'd probably get upset if I didn't at least let you know I was back.”
“I would have understood.” Dusk rubbed Prism's wing joint and kissed the back of his head. “But I'm happy you did.”
Prism let out a little grunt as Dusk continued rubbing his wing joint. “What was that book you were reading?”
Dusk's breath stopped dead in the middle of his throat, choking him for a moment.
“Are you alright?”
“F-Fine! Just um... just fine.” I should have known he'd see it! “W-what book?” A nervous laugh escaped from his mouth.
“The book you made disappear when I grabbed you.”
“Oh, you meant that book.” I could throw out the name of any random reference book and he'd probably buy it but... I don't want to lie to him. Dusk bit his lip, wondering what the right thing to say was. “Prism, we might have to have a serious talk soon, but it doesn't have to be tonight. I know you're probably tired from camp and flying home. Just rest for tonight.”
Prism forced himself up to a sitting position while letting out a groan. “Nope. Dusk, you tend to go a bit crazy when you hold this stuff in.”
“I... I do not...” Dusk hung his head. “Okay, yeah I do.”
“If it's important, lets talk about this and get it over with. I don't want you doing the eye twitch thing again.”
With his magic Dusk reached out, pulled open the drawer, and levitated the book over to Prism.
“Oh... I see.”
“You don't know what paraphilia means, do you?”
“Not a clue.”
“Paraphilia, noun, the experience of sexual arousal to atypical objects, situations, or individuals. To put it simply, a fetish.”
“Uh huh, and...” Prism motioned with his hoof for Dusk to continue.
“And, there's something that I kinda want to do, besides our normal routine.” Dusk snapped to attention and quickly waved his hoof. “N-not that I don't like our routine or that I'm bored with it. It's definitely not that.”
Prism huffed. “I didn't think that until you said it.”
“Sorry.”
“Dusk, just get the point. What exactly are you trying to tell me?”
Dusk turned his head away and tightly shut his eyes. “I, um, think I might be a sadist. I was reading this story and-”
“It was one of those trashy romance novels that Elusive likes, wasn't it?”
“Yes, but that's not the point. It had a part in it that I could get out of my head. The more I thought about it, the more interested I became. Y-you don't think I'm weird, do you?”
“Yes.”
“Oh.” Dusk laid down, burying his muzzle between his two front legs. Of course he does. What kind of pony would actually like hurting someone. I should have just let the whole thing go. His thoughts were interrupted as a wing fell over his back.
“I've always thought you were weird. This is just one more thing to add to the list.”
“R-really?” Dusk leaned against him, resting his head on Prism's shoulder.
“Yeah.” Prism's wing hugged him tighter. “You want to try this thing out, right?”
“Only if you're up for it. If it doesn't interest you, that's fine. I'll drop the whole thing.”
“I'll give it a shot.” He sat up and scooted away from Dusk. With a hoof on his chest and a large, cocky smile he spoke, “I'm one of the toughest pegasi in Equestria. I can handle a little pain, no problem.”
“If you're absolutely sure...” Dusk sat back up and opened the book to the chapter on preparing for the first time. He had gone over it once or twice already, but he wanted to make sure he got the wording just right. This was not the time to just rely on a memory and risk skipping over an important part. “There are a few things we need to go over first.”
“Really? Can't we just dive right in? Seems more fun that way.”
Dusk lowered the book to be able to look Prism in the eyes. “I want you to think about what diving right in can mean with sadism.”
“You know, we can go through the steps... if it'll make you feel better.”
“Alright, let's see... first you should tell me if there's anything you want to be off limits. Obvious, being that we're dealing with sadism, I need to know if there are anybody parts you consider off limits.”
His wings sprung open. “My wings, of course.”
“Really? Only your wings? What about...” Dusk pointed down at Prism's sheath, which he immediately covered with both of his front hooves and spun around.
“Don't you even think about it. I want anything that can cause pain to be away from my penis. You got it!”
“Don't worry, I wouldn't have anyways. I just want the list to be as accurate as possible.”
“Well it is now. What's next?”
“Next would be a safety word. To put it simply, a word or words you can say to make everything stop immediately. It should be a word that there's no chance of misinterpreting.”
“How about, Dusk Shine is a dork?” He laughed.
“Prism, this is serious. We can use one of the suggestions in here, banana. You got it?”
“Yeah, yeah. Got it.”
“Make sure you keep it memorized.” Dusk levitated the book back over to his desk, dropping the book on top of it. “And now for the final stages of the setup.”
Prism cocked his head to the side. “I thought that was the setup?”
“It was only part one. Now for part two.” The corner of Dusk's mattress lifted up and he pulled out a blindfold. Should I have him put it on or should I tie it onto him?
***
It had taken a few attempts to do it properly but Dusk finally managed to tie up his boyfriend properly. He wrapped a rolled up, spare sheet around Prism, holding his forelegs against his chest and his wings against his side, with the blindfold covering his eyes. The powerful pegasus squirmed back and forth, testing the bonds. Back and forth... back and forth... like a dance, one Dusk's eyes couldn't look away from. His breath quicken, the excitement growing as he wondered where to begin. What spot do I tease? The stomach is a usually a sensitive spot. But Prism has plenty of muscle there. Hm. Dusk's gaze moved from Prism's waist to his neck. Back of the neck and ears are said to be a good choice. The movement of Prism's hind legs caught Dusk's interest, specifically the hooves. His lips twitch, forming a mischievous smile. “Perfect.”
“You say something?” asked Prism. Dusk's magic grabbed a hold of the back, right hoof, and Prism's body went rigid. “H-hey! That's cheating!” He made a weak attempt to pull away from Dusk's grip.
Dusk held up one of his forehooves, and began pulling the moisture from the air around it, freezing it to the hard outer edge of his hoof. A thin layer of frost formed. Dusk barely brushed it against the meaty center of Prism's, feeling his body suddenly jerk and double its struggle. A shiver went down Dusk's spine as he did it again. Prism's struggle only made him was to push the pegasus farther. He pressed hard against Prism's hoof, holding it there. Then came the most delightful of sounds, Prism whimpering. Dusk closed his eyes and simply listened to the sound for a moment as it serenaded him. He was entranced and only stopped once the frost melted away.
It wouldn’t be hard to just make more, but it would get boring to do the same thing over and over. Though, he could always come back to it if other areas weren't as enticing to play with. Dusk forced himself to try to keep a clear mind during this, to look at it as an experiment. He would poke and prod different spots, as surely there are other places that would let him hear that whimper again. He pulled on Prism's ankle, keeping his leg stretched out straight. Dusk's horn charged up and sent a spark of energy straight into Prism's lower calf.
He yipped in pain. “D-Dusk?!”
Dusk tasted the hint of fear in Prism's voice, and it was sweet. Still, it wasn't good enough. Dusk wanted more, he mind demanded more, and he would take it. Aiming a few inches higher, his magic lashed out once more, striking Prism's leg just under the knee. There was a muffled grunt. Prism had bit down on the blanket. Don't hold back on me. His magic struck Prism's thigh and that did it, that was enough to hear a whimper again. There's the spot. Dusk struck once more, and again, and again, and again; changing up the power level of the shock each time so Prism couldn't get used to it. The little cries making each one more pleasurable than the last. His concentration only broke once he felt something poke against his stomach. It didn't take a genius to figure out what it was. That confirms it. He shocks Prism once more and his member twitches in time with Prism's whines.
In no small part due to the his member aching for attention, Dusk's attention turned to Prism's toned flanks. It took only a moment to pull out the needed lube and cover his penis. You always get to be on top... not this time. He stepped over top of Prism, who seemed confused by the shocks ending. Dusk didn't let him think about it long before he rammed his member deep into Prism. Moans from both mixed together. Dusk buried his muzzle into Prism's mane, breathing in the pegasus' musky scent as he pulled back and rammed into him again. The scent was divine, the tight muscles squeezing his member was making every moment amazing, but there was something missing. Thoughts of Prism's pained noises from earlier drifted into Dusk's mind, and he knew what it was.
Dusk opened his mouth and clamped down into Prism's rough hide where his neck met his shoulder. The little whine that followed was enough to send Dusk over the edge, rutting his captive boyfriend, showing no restraint. As he neared the point of no return, he drove his teeth deeper into Prism's flesh. One more thrust and one more whine was all he needed to let go and shoot his seed into Prism. “Ah!” Dusk yelled out, then rolled off of Prism and onto his back. In a haze of sexual bliss, Dusk laid there for a moment, panting as his body started to calm down.
Prism's nose poked as Dusk's cheek. “D-Dusk?”
“Hm?”
“Are we done?”
“I-I think so.”
“Then untie me.”
“Oh!” Dusk sat back up and undid the knot holding the sheet, letting Prism pull himself free as Dusk also pulled off blindfold.
“So?”
“So, I...” Dusk's words got stuck in his throat as he got a clear look at the mark on Prism's neck. Blood seeped through some of grooves Dusk's teeth left in his hide. “I hurt you.”
“That was the whole point of this, right?”
“No! I-I didn't want to actually hurt you! Just... I just want you to feel a bit of pain but not this.” Dusk shut his eyes tight and began shivering. What is wrong with me! I hurt him... I hurt him and I liked doing it! “I'm sorry.” Prism pulled him close, the side of Dusk's head against Prism's chest.
“No, we're not doing this.” Prism took on a softer tone and whispered into his ear, “Duskie, if I wanted it to stop I would have said that stupid safeword.”
“But-”
“No! No buts. If it was too much I would have said the safeword. I could have ended that anytime I wanted to. Got it?”
Dusk nodded. A moment or two passed as Dusk tried to focus on listening to Prism's heartbeat and breathing.
“Feeling better now?” asked Prism.
“A little. I, um, I have a healing potion in one of the storage rooms. It should be able to get rid of that mark.”
“I'll be fine. Don't worry about it.”
“Prism, please. I-I want to take care of you.”
“If it'll make you feel better, go get it.”
Roughly five minutes later, Dusk was back with a jar full of what could best be described as green goop. He removed the lid and sniffed the contents. “Bleh! I hope it's supposed to smell that way.” Using magic, he pulled out a dollop of gunk. “Lean your head to the side.” Prism cringed as it touched one of the bloody spots. “Sorry. Should have warned you that it might sting.” Dusk took care to make sure every single tooth mark was properly covered.
“Are you going to keep getting this worried and upset after we do that?”
“That depends.” Dusk screwed the top back on the jar and set it on the floor next to his bed. “Are we going to do it again? Did you enjoy it?”
“No, I didn't like it. I don't actually like others hurting me on purpose. But, I know that you do stuff you don't really like for me.”
“But nothing as big as this.” Neither said anything until an idea popped into Dusk's head. “How about this, to make it fair I'll owe you a favor.”
“So after that, you'd finally agree to turn me into a griffin?”
“Are you still thinking about that?”
“Yep. I'll also accept a dragon or phoenix. Just something that's cool and flies. I want to know what flying is like them them.”
“Okay, I'll do it. You can ask for whatever you like after a play session. Within the realms of common sense, that is.”
“Play session?”
“According to the book that's what it's commonly called.”
“Whatever. You have a deal.” They shake hooves on it. “But we're not going to be doing it that often.”
Dusk nodded. “That's for the best.” Dusk yawned, causing Prism to do the same. “We can talk more in the morning. I think we both need sleep.”
***
Prism stirred and slowly opened his eyes. Morning came and he reached out for Dusk, only to find that he was alone in the bed. “Must be making breakfast or something.” Prism stretched his legs and wings before jumping off the bed and walking up to the desk. He stared at the book that lay on top of it. He opened it to a random page and shook his head. “That's just weird.” He turned the page. “Now that... that, um... That might be fun.”