“Are you sure this is a good idea?” Spike murmured, fidget in place.

“Spike, I’ll be fine!” Twilight shot back, glaring up at her trusted friend.

“Yeah, says you, but I can’t say I’ve ever heard about a pony doing something this crazy...” the small dragon rebuked.

“Look, I read all about it. It’ll be alright, I promise! Besides, how many people can say they’ve fucked someone’s ear!” the alicorn chirped, invitingly running one hoof around her sensory hollow.

“Fine,” Spike relented, snatching up a bottle of lube, “but if you end up retarded, just remember, this was your idea.”

With that, the tiny reptile administered a line of the gooey substance onto his semi-erect tool. Setting the container down, he stroked his dick, working himself to full length. Truth be told, he’d been a little curious about the exceedingly odd proposal, even if it had confused the ever-living heck out of him. He had done some pretty wild stuff with Rarity before, but this one would take the cake claws down.

According to Twilight, there was some secret technique that allowed for one to achieve unimaginable pleasure via penetration of the cranial cavity through the ear canal. Spike hadn’t extensively researched it, although he knew it took a ton of prep-work on the recipient’s behalf. Glancing down at the mare, watching her hoof caress the opening, he took a deep breath.

“Ready?” the Spike asked, steeling his resolve.

“Like you have to ask,” Twilight chuckled. Seated on the floor, atop a large cushion, she closed her eyes and gnawed her lip. If it felt half as good as the articles said, she’d be in for one heck of a ride.

A few months back, as she’d been cleaning her ears, she noticed just how enjoyable the experience was. Cautiously, using a q-tip, she’d eased the little tool deeper and deeper into the side of her head. As a pony, her ears were rather sizeable, requiring regular maintenance, so she had no idea why it had taken her so long to notice the delightful sensations they were capable of.

Q-tips eventually led to other, increasingly sizeable objects and sex toys, until she’d come to this moment. Of course, she’d taken as many safety measures as she could - the main one being remaining seated for the experiment - yet she was still slightly anxious. Regardless of her trepidation, her curiosity and lustful interest had won out.

“A...all right, just go slow,” Twilight whispered, remaining motionless, as she felt the warm, slick head of Spike’s prick press against the tiny opening. At her cue, the dragon began applying more pressure, until the tip ground into her ear canal.

She squirmed slightly, as the slender pathway to her brain was stretched open. It wasn’t unlike having a cold, foreign object in her ear, albeit substantially more girthy and much, much warmer. Having the delicate flesh within her ear caressed and used was inexplicably and undeniably arousing. Sure, part of it could be due to the taboo nature of the act, although the feeling was far from unpleasant; that was, until it reached a certain depth.

Gritting her teeth, she stifled a grunt. It didn’t quite hurt, although it was certainly extreme. She could equate it to her first attempt at anal, intense and mildly uncomfortable. Twilight could feel Spike’s pulse, through the sensitive tissue of his auditory meatus, almost hearing the rhythmic Ba-Bump Ba-Bump Ba-Bump of her partner’s heartbeat. Still, with the promise of some untapped wellspring of euphoria, buried deep within her skull, she endured.

“K...keep going,” she grunted, sensing the dragon bump against her eardrum.

“But -” Spike’s objection was cut off, as the Princess glared up at him.

“For a dragon, you sure act more like a chicken,” Twilight giggled, goading her companion. Unfortunately, she’d unwittingly touched on a sore subject.

“You know what, FINE!” Spike barked. Drawing his hips back, nearly pulling himself free from his friend’s noggin, he paused. “If you want it that bad, just take it all,” he growled, hammering his hips forward in one titanic plunge.

Twilight felt, more than heard, a pop from within her head. The abject shock of the abrupt act eclipsed any pain, though it did leave her startled - that was, until a numb, tingling sensation overtook her. Little did she know, but Spike’s member had bludgeoned past her cochlea, through the thin bone of her skull, and glanced off her frontal cortex, directly affecting her motor functions.

“Oh crud! A...are you ok?” the dragon asked, his gaze drifting from his buried unit to his friend’s face.

“K...keep going,” Twilight huffed.

“If you say so,” Spike murmured. Pulling out slightly, he began to gently hump the side of the alicorn’s face.

The first two jabs of the reptile’s dick send pins and needles through Twilight’s limbs. It wasn’t unpleasant, so she saw no need to stop. Just as she was becoming acquainted with the sensation, Spike adjusted his angle. With a particularly forceful thrust, with catastrophic results, her parietal lobe suffered a direct hit.

Her whole body spasmed slightly, as she was overcome with a wave of pure euphoria. Though she wasn’t aware of it, her marehood spontaneously drooled and seized upon itself, as she involuntarily climaxed. It wasn’t like a normal orgasm, not by a long shot. There was no build up, no gradual increase of pleasure, just an immediate and unstoppable detonation of raw pleasure. Trembling on the floor, a guttural groan escaped her.

“Oh buck,” Spike groaned, almost to himself. Despite the unexpected turn of events, he didn’t slow.

Truth be told, the succulent interior of Twilight’s noggin was quite inviting, albeit slightly more gooey than anything he’d stuck his dick in before. Noting that the alicorn seemed to be enjoying herself, he persisted in his efforts. If altering the trajectory of his dick could affect different portions of his friend’s grey matter, he wondered what would happen if he…

Twilight’s hooves scraped against the polished marble beneath her, as her forelimbs went rigid. Again, there was a catastrophic shift in her mind - quite literally. Explosions of light danced before her eyes, seemingly from nowhere. It was almost like being thrown into a rave, except there was a jarring lack of music; only the steady Whap Whap Whap of the dragon rutting her ear canal. In a sense, it was a symphony of its own, considering its beat synchronized with her visual experience.

Noticing the Princess’ amused expression, a wicked grin creased the dragon’s face. Gliding his hand to Twilight’s free ear, he jammed one clawed digit into the opening. His friend started, caught off guard by the secondary intrusion, but Spike wasn’t done yet. Angling his hips, he drilled his shaft into the mare’s head, towards the front of her cranium.

“How about some DP?” he laughed, now violating both of the pony’s ears.

Though Twilight wanted to reply, she was unable. A string of unintelligible gibberish escaped her, while her frontal lobe was stricken by the reptile’s unit. Her jaw worked uselessly, leaving strands of saliva to drool past her lips. While her vision had returned, with the hallucinations subsiding, her body felt heavy and limp.

“H...lrrg...ga” she slurred.

“What was that?” Spike asked, his movements slowing.

“Harder…” Twilight finally managed, as the synapses of her frontal lobe were given a brief respite.

“If you say so!” he responded. Incrementally, like a machine, his hips moved faster and faster. Dedicating himself, he firmly grasped his friend’s head, with both hands, as he began to truly fuck.

While she was vaguely aware of the Spike’s scaly loins slapping against her jaw, it didn’t matter. No, now her companion was going at full force, her body was beginning to suffer the full repercussions of a mental assault. It was chaos, pure and simple, there was no other way to describe the maelstrom of sensations accosting her.

In the blink of an eye, her state of consciousness changed erratically. Vision, hearing, taste, touch, smell, nearly instantaneously, they were amplified beyond belief; while at others, they were robbed from her utterly. Beyond the sensory input, or lack thereof, she suffered various other effects. In a way, it was like a fever dream, yet exponentially more insane. Though, as terrifying as it all was, the pure ecstasy she felt overpowered it all.

Imagine an orgasm; the rapturous physical bliss of mounting pleasure, ending in an explosion of euphoria and warmth. Now, magnify that beyond comprehension and apply the effects to every nerve fiber in your being. Your entire body, every neuron within you screaming with delight, as lightning bolts of heaven surged through you. If you can grasp that, you may be able to imagine one small iota of the experience.

With increasing speed and force, Spike pleasured himself. His own enjoyment had reached a tipping point, with his body forcing him to continue. He was close to his limit, a mere hair’s breadth away from the edge. Plowing away with reckless abandon, in his own pursuit of release, the concerns for his friend were overshadowed.

Having lost her voluntary motor control, Twilight rocked back and forth on her cushion. Her head was held firm by her friend, wantonly rutted by the dragon, as her forelegs hung limp at her sides. Saliva dangled from her slackened jaw, dripping onto chest and floor. Her sex twitched and spasmed, periodically gushing nectar to the pillow, as she fitfully came for the umpteenth time.

In truth, she couldn’t tell how many times she’d climaxed, though she had a good excuse. A living brain was never intended to be so ferociously stimulated, so it was forced to misfire and glitch. Synapses ignited randomly, as they were pummeled by the draconic cock assaulting them. Thankfully, Twilight’s brain stem was left unmolested, so her autonomic functions were unhindered.

“Oh buck, I’m gonna - Gah!” Spike grunted, as he peaked. Entombing every inch of himself into his friend’s head, his hips quivered and trembled, while he huffed in climactic fury.

Twilight’s eyes snapped open, and every muscle she had seized, as the first hot eruption of seed spattered over her sulci. Like a miniature tsunami, cum was pumped into her skull, increasing the pressure in her cranial cavity. With nowhere to go, a few stray gouts of the creamy substance escaped the abused entrance of her ear, but it wasn’t enough.

With a choked cough, spunk went flying out of the Princess’ mouth and nose. As she breathed, bubbles of the thick jizz formed from her nostrils, while a thin trail of it seeped out over her tongue. Not that she noticed, given the fact that her very sanity was on the brink of shattering.

“Dang, that was a good…” Spike trailed off, when he noticed the sorry state his friend was in. “Oh jeez! Twilight, are you alright?” he blurted, hauling his softening tool from the alicorn’s head.

A miniature geyser of cum spurted from Twilight’s ear canal, as it was freed from the dragon’s dong. As it departed her cranium, leaving the interior of her skull looking like a snow globe, she shuddered. Ever so slowly, while her faculties began to return, she peered up at her friend.

She felt like she’d been hit by a train, while hung over, after cumming for days on end. Her muscles ached, her vision was blurry, and she felt a bit woozy, but not terribly so. Steadying herself, she went to stand, before resigning herself to stay seated. Yeah, the cushion had definitely been a good idea.

“You alright?” Spike repeated, bringing his face towards her.

“Y...yeah, I’m fine…” Twilight wheezed, her vision beginning to focus.

“Heck, I thought I’d killed you,” he weakly chuckled, shaking his head.

“N...not this time,” she retorted, wiping the jizz from her snout. “Hey, can you help me get showered up? I’d really rather this not dry in my coat,” she added, realizing how much of a spectacular mess she was.

“Sure, no worries,” the dragon responded. Carefully, he helped his friend to her hooves, making sure to keep her steady. “C’mon, let’s get you cleaned up.”

As she shuffled to the bathroom, Twilight’s cum-drunk mind processed the experience. If one dick accosting her brain felt that good, what would two cocks in her head feel like...