Limerence flicked his ears towards the door to his room at the sound of soft hoofsteps hurrying up, and the trio of knocks that followed. He could practically hear his visitor dancing in place in anticipation...and impatience. Whoever it was was eager to see him. It was probably Zefu.

He barely had time to finish up the line of notes before another round of knocks came again. He sighed at the distraction, standing up hard enough to move the chair back some. He was ready to give his brother an earful on the virtue of patience when he opened the door.

What lay behind it gave him pause.

“Zefu, w-” The unicorn blinked, narrowing his eyes. “...why are you wearing a skirt and socks?"

"Thank you for taking your time to answer your own door." The half-Zebra practically sneered. "That's the question you ask? Not 'what are you doing here at this time of night?' but 'why are you wearing that?'. We live atop a vault of powerful magical items. Odd line of thought there, brother."

"Well if you must know, I-"

"I was being pedantic! Now let me in before someone sees." Zefu whispered in harsh urgency, shoving a notebook at his brother before all but pushing his way past the unicorn into the privacy of his room.

Limerence shook his head and closed the door, lock clicking shut as was the benefit of being able to enchant your own stuff. Until he turned around. Surprise, confusion, and a small amount of shock ran through Limerence in the moment, all of which led to him saying the first thing that entered his mind.

"Brother," The unicorn blinked. "are you wearing… lace underwear?"

"It's silk, actually." Zefu's nonplussed expression didn't match the pose he struck bending over to peer back at the thin layer covering his rear. "I think. I'm not in the habit of wearing silk."

"Are you in the habit of cross-dressing, then?" Limerence's ears tinged pink at the sight of his brother's muscled form. Try as he might, the…'clothing' was drawing his gaze more often than not. "Why, then, are you-"

"We finally get to the point." The other stallion sighed in exasperation. "In short: I put on some old anti-dragon lingerie. And now I can't take it off on my own."

“If you could you wouldn’t be here. How did you get yourself...stuck?”

“I was researching magical armor - clothing enchantments specifically. What better way to take a closer look than trying it on?”

"...and what did you find out?" Intellectual curiosity overtook Limerence's reaction to seeing his brother's hips perfectly framed in form-fitting silks. Momentarily. He still caught himself staring.

"Apparently only the silk is the actual part of the armor. Everything else is extra." Zefu took his cane and twisted the top, drawing the blade. He held a foreleg out and ran the sharp steel against it, somehow refusing to cut into him despite its steep angle. He stowed it after in one smooth motion.

"It lives up to its name. It layers a full-body shield over the wearer. Fireproof, protects against everything a dragon would have. Obviously, I don't have a ‘dragon-strength’ anything to test it on."

"So why can't you take it off? Or, as those testing weapons on armor tend to do - put it on a model?"

"The anti-dragon properties only activate on a living body. My testing seems to have triggered a failsafe. Or a feature." Using his magic, the half-unicorn tried to pull the hem of the skirt down. It only went so far before stopping completely. "It can be shifted, but not taken off. Handy if you're being tossed by a giant lizard I suppose. And needs an external spell source to disable. I've worked out the spell."

He leaned on his cane, pointing to the book.

Limerence glanced down at the ring-bound papers Zefu had passed him, and paged through. They were surprisingly extensive.

"You've been at this a while, I see." Taking a more critical eye, the unicorn walked a circle around him, examining the tight fit of the clothing, how it also conveniently left some things to the imagination. "I can't help but wonder…"

Limerence finished his round and held up his brother's open notebook, tapping the final unanswered question. 'Why lingerie?' was circled.

"Because the wearers were intended to seduce dragons? How would I know?"

"I would've said material constraints to the spell weaving, myself…"

"Look, are you going to help me take this off or not?" Zefu grunted at his brother. "Or is this the first time you've seen a pony wearing any sort of underwear up close?"

"Well you could have easily just waited it out. Or looked for help in the morning. No armor designer would ever make a set that couldn't be removed at all, you just got impatient. Unless…"

"Unless you wanted to try it on yourself?" The young stallion shifted a leg. "Mare's clothing can be rather tight in certain places. Places I'm sure you'd enjoy."

"Now that's a little rude of you, brother." Limerence's voice intoned with a certain inflection, a specific look as he made eye contact with Zefu in a way that clearly had more to say. He put a hoof under the corner of his cheek. "Remember what we talked about the other day? If you want something - ask nicely."

"I…initially came to ask for help in getting me unstuck…"

The unicorn held his expectant look.

"...does this look good on me?"

"You look ravishing." Limerence took on an almost uncanny growl in his voice, a pleased rumble not usually heard from stallions of his scrawnier build. "Is that all?"

"This must be the closest thing you've ever had to being intimate with a mare." Zefu muttered dryly. "I’d almost say you need practice on how to treat one."

“Is that so? Do you also remember what else we’d talked about?”

“Of course. And I ‘ve been remembering how you acted in your...frustration...”

"Ah. So there's the question. Well, I suppose I could give you a reminder…" Limerence leaned in, and his brother leaned back. Their lips met with a comfortable familiarity, and a growing warmth. Their horns met as they clashed mouths and Zefu recognized the feel of magic against his own, asking for entry.

He accepted. And a cool wave leaving fiery sparks washed over him. He felt sensations and desires within him that he could distinctly recognize as an 'other'. Limerence's desires. And he was sure the unicorn could feel his. They parted, each feeling a good deal warmer than before.

"You naughty pony, Limerence - you've been eyeing me ever since I stepped into the room." Zefu wiped some saliva off his chin with a hoof, setting his cane aside.

Limerence smiled just a tiny bit sheepishly, opting to put Zefu's notes on the nightstand instead. He pointed his horn toward the nearest wall and let loose a bolt of magic that lit up the circuit board of a spell matrix on it. "And you've been wanting to put on a show for me since you put this on. Well, no one else will be hearing us now."

"Forget the show - if you want these off you'll have to take it off yourself." The Zebra hybrid walked over to the edge of the bed, half-stepping onto it. He shot the unicorn a teasing look over his shoulder, raising his tail to lift up the edge of the skirt. "Show me what you can do, Limerence dear…stars know you won't be using it on any mare anytime soon."

"You'd like that, wouldn't you? Having me all to yourself." Limerence stepped forward and rubbed a hoof on his brother's firm rear, a bit more hardened than his own due to his more…'outgoing' lifestyle. He felt the response to his touch as a welling of desire within his own abdomen. "Being on call to scratch that itch no female can. And when you do, you come running to your 'big brother'."

"I only do so for your benefit." Zefu purred, arching his back. The familiar burn of his brother's desires was an easy fire to start, he'd found, befitting his name. "We both have our…needs. Why not work together when they align?"

"I think you're just lucky the only one of us who cares so much about this is you - I can't imagine how you get along with anyone being so needy." The unicorn had let his hoof trail up the curve of his back before holding it off. He turned his head slightly to look at Zefu's face, watching his reaction. "You do realize what you're getting yourself into, this time?"

"You're too sweet, brother, truly. But how much 'nicer' must I ask at this point?" The young stallion put his forelegs on the bed and pushed up against Limerence, flicking the tuft of his tail in his face. He focused on his feelings - wallowed in his desires, his lust - letting the unicorn feel them through their mental link.

‘I want you on top of me.’ Raw need washed over the blue unicorn. And Limerence found his own need rising in response.

“Well then, I hope you don’t mind being more vocal.” The pony leaned in close to his brother’s ear, and whispered hungrily. “Because I’m going to make you scream, Zefu.”

One brother rolled onto the bed, and the other followed suit.

"Tsk, that's no way to speak to a mare." Zefu chided, turning onto his back. "If you tried that on anyone you might as well be paying them to spend time with you."

"I'm afraid you have me quite in a bind, brother." Limerence planted both his hooves on either side of his chest and knelt between his spread legs. "How I'd treat a mare is nothing like how I'd treat you."

"Show me."

The unicorn brought his hips in and compared their lengths. His pink shaft was not nearly half the length it could be, while the bulge of the half-zebra's black cock was still trapped under his silk panties. There was much work to be done.

"For anyone else, I'd want to make sure that they had a good time…" Limerence rubbed their groins together, smearing and mixing the initial drop of precum from both anticipating what was to come. He shifted the panties aside, exposing Zefu's stallionhood to the open air. He could probably have removed the lace by now, but the look was beginning to grow on him.

Limerence looked up, meeting his brother's eyes. Lust and want gazed back, forelegs passively held up. The spell made their desires and moods move in sync, reading and feeling the other's most prominent thoughts. He was waiting for more.

The unicorn dove in, leaning over to clinch his teeth firmly around the skin of his neck. Zefu let out a pleased grunt in response, the hiss from his mouth as the pain mixed with the pleasure. He wrapped his forehooves around his brother's back, spreading his legs wider, inviting him to press down harder.

"Oh, Limmy…" the hybrid whined.

It was no time at all before both of them were at full mast. Limerence moved his mouth over Zefu's - their tongues met in ways they were both already very familiar with. Each dance together only increased their experience. A burst of magic from. him aligned their throbbing cocks with each other as their horns crossed more than once. For a brief moment, their pleasures heightened to the point they were practically one - in mind and body.

The frotting brothers continued their erotic dance until both had produced a fair amount of pre. The unicorn leaned back to feel the cool stickiness on his chest. He pooled it all together, using his horn to rub their mixed fluids all over his pink shaft. It would have to do.

How many mares had his brother's thick length been in? Limerence wondered, wiping a stand of saliva from his chin. And yet here he was, cock leaking, panting hotly under him as the wannabe Casanova laid back, dressed up less than a mare himself. A whore.

"Now as for you, little brother, I know you too well to think the same." He moved up, supporting his forehooves on the headboard. All Zefu had to see was Limerence's throbbing, firm cock glistened with their combined precum in front of his face. "You'll be having a good time because I'm having a good time. Now suck."

A hoof behind his head was all the assistance the half-Zebra needed to open up his throat, taking the soft pink length in one (relatively) smooth motion. He paused once it went down as far as it could go, Zefu closed his eyes and basked in the feeling of his brother's short thrusts stretching out his maw, the taste of their salty precum on his tongue, the smell of his nose buried in the unicorn's crotch. He was in heaven.

Almost all too soon it was over, and Limerence pulled out, his length glistening slick with the thick slime of stallion pre and spit. It felt cool in the air, tickled by Zefu's warm breath.

"You know what to do next."

"S-so rough…" Zefu coughed, wiping his mouth on his good hoof. He looked up with an expression of annoyance, despite his tone of voice. "Rather rude of you to not at least ask first…"

"I learned it from you." Limerence's lips twisted into an unabashedly unapologetic smile. "Consider this to be me finally seizing my opportunities."

With a mild yank of his bad leg, the half-Zebra found himself being flipped over in a way reminiscent of a certain 'fight' they had from days before.

"Seem familiar, brother?" The unicorn teased, hooves on his haunches, rubbing his lubricated shaft against the crease of the silk lining between his rear cheeks. "This look fits you, really."

Zefu wiggled in place, biting his lip to stifle the pleased whine about to come out. He could feel the tip of his sibling's spear poke and rub on the tense ring of his back door. His hoof might not have been wrenched behind his back, but he was feeling rather…helpless.

And he could feel Limerence relishing in it.

"S-so do you plan to make me beg?" He murmured, not noticing his back arching ever so slightly. His tail rising just a bit higher. "You should know I-”

Zefu’s voice cut off into a high-pitched squeal when Limerence forced his way in.

"Not…what you expected?" The unicorn grunted as he shared in his brother’s sudden discomfort, mixed with a wholly different kind of pleasure. It was a surreal experience.

"This isn't…exactly how I imagined, no…" Zefu’s legs began to shake as he felt the young stallion above force his meat deeper in him, stretching him out against his body’s own wishes. “Y-you’re bigger than I expected…”

"S-speak for yourself…” Limerence groaned. His head swam in a conflicting rush of pleasure and discomfort, no longer able to tell which of them it came from, pausing when he pushed himself in as far as his brother’s depths would allow.

"I'm not…telling you to stop…" Zefu looked back at his brother mounting him from the corner of his eye, forelegs having found themselves a pillow to wrap around. He clenched down on the rod impaling him, sending a pleasant pulse of pressure throughout his body. He wanted more. "S-surely you can go deeper than that…"

"M-maybe if you'd stop clenching so hard," The unicorn grumbled, hugging his brother’s waist, his shaft held just short of the medial ring. Zefu’s tensing was going to force him out at this rate. "I could get in further, you big baby."

"All your legs are working just fine. It's not my fault if you're not going hard enough to make me feel it, I know you're not lacking in equipment…"

At that, the unicorn reached forward to grab a mouthful of mane in his teeth, and pulled.

"Ahh, yesss~" Zefu hissed, the pleasurable pain of his brother’s cock spreading his hole wider overtook his senses. The hard pressure of his rod pressed on something deeper within that made him cry out. "That's the spot…d-deeper…!"

With a slow, deliberate draw, the unicorn all but shuddered as he pulled his hips back - and thrust forward.

The sound in the room was filled with the voices of the young pair in coital bliss, moaning and yelping each other’s names. Limerence did all he could to keep up the motions - his mind was awash in a thick haze of pleasure from both himself and Zefu, panting and breathing like a factory machine. Zefu did his best to stay still, though the battering ram of his brother’s length pounding against his prostate was chipping away at his resolve. His knees were beginning to shake, to say nothing of the lewd moans now escaping his mouth.

“Ah, Limmy....fuck me, brother~”

The sound of his sibling’s voice, calling out for him an octave higher, did...things, to Limerence’s psyche. All the pleasure aside...he wanted to hear more.

“Mmf, yesss...h-harder....!”

He wanted to hear Zefu beg.

“T-tell me…” The unicorn panted between thrusts, knowing his own climax was nearing. The downside of being the less experienced of the two, he supposed. But he was going to remind Zefu of his place before it was over. “Tell me how much you want me.”

“H-hah.” The hybrid’s laugh sounded more like an exhale of air. His ears echoed with the sound of their hips slapping together like the rhythm of a drum. “S-still asking permission, brother? I thought you’d...you’d…”

“I'm done asking." Limerence put both hooves on his brother's back and forced him into the mattress, face first. With this new angle he began pounding down with renewed vigor - harder, deeper. "Beg."

Zefu cried out, in pain and pleasure both as his ass burned with the pleasing stretch of his brother's hot, long meat pumping in and out, going deeper than he thought possible. A glance between his own legs showed his own black length had gone half-flaccid, a puddle of clear pre had since been pooling on the sheets from the rough milking, swinging in time with the unicorn's powerful thrusts.

Limerence found himself slowing, just as much to stay his orgasm as it was to drag out the torment for Zefu under him. Slowly but surely the unicorn worked himself close to the hilt, each pass feeling somehow tighter than before. The kiss of the hybrid’s firm, toned muscles against his hips was addictive. He could feel through their link the discomfort he was causing, but also the pleasure it caused in return. It was as if the harder down he forced his head the higher up his butt rose to meet him.

Kinky bastard. And clearly, so was he.

Despite the lowered pace, Zefu found his mind being pounded ever so deliberately into a pleasured mush by the one mounting him. The sound of the leaky wet shaft sliding inside him. The feeling of his rear clenching down around Limerence’s cock as it pistoned into him, brushing hard against his prostate…

He wanted to feel more. Limerence wanted to hear him say so. In his mind, in that moment, something clicked. It was all so simple.

"P-please, brother…" The young stallion whimpered. "I w-want it inside. Celestia knows you aren't using it on any mares…"

Another tug. Another yelp.

"Ah~! The only seed getting wasted here is mine!" Zefu's voice, frantic with need, was a far cry from his usual smooth confidence. One could even say…mare-like. "F-fill me, Limmy! Fuck me! I'm begging you!"

"Good…boy…" Limerence groaned as his legs gave out, collapsing Zefu under his bodyweight. Whatever mental walls he had up were torn down in that moment, and pushed in one last time to give his incestuous sibling the feeling he so craved. His final thrusts slowed, grinding Zefu into the bed, and brought his voice into a squeal.

The pair lay in place, only being able to breathe as the unicorn's pink cock throbbed and pulsed, pumping his load of unicorn jizz into the hybrid's rear. Limerence had all but collapsed forward, sweaty and exhausted as pulse after pulse of pure euphoria washed over him. Zefu's tongue had lolled out from the warmth spreading from inside him, drool beginning to seep into the sheets, his muzzle buried his brother's long blonde mane. Their minds reeled from the feedback loop of pleasure, pain, and orgasm.

Seconds felt like minutes as the smog between them cleared, cut short by the unicorn pulling his shaft free from his brother's still-pulsing rear with a wet pop, and a gasp from Zefu.

"G-guh…" The young stallion's eyes blinked back into focus as the movement reminded him of one lingering matter between his legs as he lay in the comfortable sticky mess they'd made. "Aren't…aren't you…?"

"You started this…you can finish it yourself."

Limerence heard a sound he never thought he'd genuinely hear from his brother. Zefu pouted like a sad foal, and whimpered.

"Aww, come now. You know I would never leave you unattended…" The unicorn stroked a hoof down the side of his mane. "Whatever happened to my charming, fit, confident little brother?"

Zefu leaned back into his brother, and scowled.

"Ah yes, he put on a skirt and begged his brother to fuck him like a mare." Limerence lifted up the stallion's hind leg, rolling him into his back. It was quite the sight. A puddle stained the sheets, all clearly caused by the half-hard, leaking shaft. The lingerie lived up to its name, he noticed - pushing up a pair of taut, dark orbs aching with need.

"Maybe we do need more practice, if all that wasn't enough for you to finish..."

The frown remained on Zefu's face even as he moved around to nestle himself between his thighs, forelegs spreading him open. He put a kiss on the tip of the black, throbbing shaft, wet and moist from before, running the bead of salty fluid around his lips to moisten them.

"Hmm…look at this, all hard and leaking just for me. With a belly full of my seed, no less. I imagine your marefriends know nothing about this…"

He kept eye contact with Zefu watching him bite his lip as he wordlessly slid the cock into his mouth, sucking lightly. He could feel the soreness creeping in already, but he wasn't so cold as to leave his brother…completely unsatisfied.

It didn't take long before what reserves of his brother's usually copious load began to fill his cheeks. Letting the head slip free of his lips, Limerence crawled forward, tongue out. Zefu pulled him up to meet him halfway, their lips locked and eyes closed as he was mouth-fed his own thick cream.

He swallowed. The only seed getting wasted was his, after all.

"I don't know if you're the worst brother ever, or the best." Zefu's ears burned pink when they parted, a trail of his own salty, strong fluids still connected them. "I hate you, Limerence."

"You ruined my sheets," The unicorn's hoof bopped him on the nose. His breath stank of cum. "I hate you too."

Author's Note

It really seems Limerence has come into his own now, hasn't he?

Of course, seeing as they're both nondescript young adults their fidelity to their canon personalities is debatable, but I hope you can see how it might work.