https://desuarchive.org/mlp/thread/39905111/#39927815

The hot water cascaded over my bare skin as I stood under the shower head, lost in thought. The events of the last few months replaying in my mind; appearing in this strange colorful world, being found by a cyan pegasus who proceeded to show me around without questioning the anomaly of my existence here. Rainbow Dash, as brash and athletic as her name implied, had become fast friends with me. Her outgoing and bold personality meshing well with my own as I adjusted to life in Equestria.

A noise caught my attention, pulling me from my musings. There in the doorway of the bathroom stood a sleepy Rainbow Dash, mane unkempt from sleep. Rubbing one cerise eye with a hoof as she yawned, "Mornin Anon, mind if I join ya?" Without waiting for an answer
she stepped into the shower, the water soaking into her colorful coat and mane.

It was then I remembered, ponies had no nudity taboo. A startled sound escaped my throat as I swiftly turned away, a fierce blush staining my cheeks. My manhood hung flaccid between my legs in full view, something Dash had never seen before due to my habitual clothing. An inquisitive "huh?" came from behind me, no doubt she had noticed.

"Anon why are ya turned away? Did I do somethin' wrong?" Concern and confusion evident in her tone. I sighed, how to explain human sexuality and it's psychology to an innocent pony? "It's..a human thing Dash. We consider our genitals private." A pause, then an amused snort came in reply, "That's silly. Ya got nothin' I haven't seen before."

I turned to argue the point but stopped short, gaze locking onto the pony before me. Her lithe athletic body soaked, droplets of water trailing down toned flanks and over the curve of ample hips. My eyes followed one particular droplet, gaze unavoidably drawn to the
swollen pink flesh between strong legs. A jolt of arousal shot through me at the sight, my member hardening in response much to my embarrassment.

Dash's eyes were also locked onto my now erect manhood, a fierce blush staining her cheeks to match my own at the implications. Her wings flared in a sudden burst of nerves and arousal, dilemma written across her features. This was not how I envisioned our morning going.

thought you said it was nothing you hadn't seen before?

The blush refused to fade from Dash's cheeks as her gaze remained locked on my engorged member. "Y-yea but not really like t-that." She stuttered, shifting on her hooves nervously. It seemed she was as much at a loss as I was in this situation. 

I sighed, running a hand through my soaked hair. "It's an involuntary reaction, I can't really control it." An awkward silence fell between us, the sound of running water filling the void as we both avoided eye contact.

The silence was shattered by a sudden snort of laughter from Dash, her boisterous nature winning out over her nerves. She shook her head in amusement, "Only you Anon." I couldn't help the smile that pulled at my lips in return as the tension eased from my frame. Our friendship had endured too much for this small hiccup to damage it.

Dash stepped forward closing the distance between us, a sly grin on her face as she looked up at me. "So this is what ya been hidin' under those clothes huh?" A teasing tone had entered her voice, easing my remaining worries. "Not so bad, for a human." She joked.

I quirked a brow at her jest, "Oh really now?" She nodded fiercely in response. I decided turnabout was fair play, eyes trailing down her body once more, "You're not so bad yourselif, for a pony." A fierce blush returned to her cheeks at my perusal, wings flaring to match. It
seemed teasing went both ways.

Laughter filled the small space between us, the absurdity of the situation hitting me fully. Here I was complimenting a pony's physique, said pony a close friend I had accidentally aroused. The hilarity of it all was too much, Dash's own laughter joining my own. Our friendship had endured against all odds, it would take far more than this to truly damage it.

As our laughter died down Dash turned, presenting her back to me. "Think ya can reach that spot between my wings? Been drivin' me crazy." She asked over her shoulder, tone nonchalant.

I hesitated only a moment before placing my hands on her back, fingertips digging into the nuscles beneath her coat. A pleased groan escaped her as I worked at the tight muscles easing the tension from them. Her wings fell lax at her sides, a visible sign of her relaxation.

Emboldened by her reaction I allowed my hands to roam further, exploring the dips and curves of her back and sides. Firm muscles shifted under my touch, her athletic form appealing in its own way. Dash made no move to stop my wandering hands, soft sounds of
pleasure escaping her as I found particularly sensitive spots.

Her tail flicked against my thigh, the tickling sensation drawing my attention to how close she now stood. The swollen flesh between her legs was pressed back against my own rigid length, a thrill shooting through me at the contact. I stilled for a moment, unsure how she
would react but Dash only pressed back firmer against me.

A surprised groan was pulled from my throat at the sensation, my grip on her sides tightening in response. Dash turned her head to glance back at me, a coy smile on her face "Feel good?" She asked, grinding her rear back against my aching need for emphasis.

I nodded mutely, hands sliding around to grasp her hips tightly. She was playing a dangerous game, testing limits we had not yet discussed. But as my length slid along her moistening folds I found I did not care. Consequences could come after, for now I was content to follow where this encounter lead.

Dash's breath hitched as I rocked against her, wings once more flaring into view, signaling her own arousal. It seemed I was not the only one caught up in this encounter, her own desires guiding her actions. Guiding my hips with hers she set a rhythm, soft sounds spilling
from her lips as our pace quickened.

The sounds of pleasure Dash was making fueled my own, my grip on her hips tightening further as I thrust against her with abandon. She cried out, pushing back fiercely against me as our rhythm intensified. I growled into her ear, "You're playing with fire Dash."

She turned to glance at me over her shoulder once more, eyes clouded with desire 'Then let me burn." She panted in reply, grinding back against me for emphasis. I groaned at her words, my length throbbing with the need to bury itself in her moist heat.

Sensing how close we both were Dash reached back, grasping my hips with her hooves to pull me tighter against herself. The new angle had me rutting directly against her now soaked entrance, the tip of my rigid length parting her folds with each thrust.

A strangled sound tore itself from my throat at the exquisite sensation. Dash pushed back hard, my entire length suddenly enveloped in her tight heat. I stilled for a moment, drowning in the feeling of her stretched around me.

Dash squirmed against me impatiently, her own need evidenced by how eagerly she took me in. I began to move, starting a fierce rhythm as I thrust deeply into her. Dash cried out, pressing back to meet each thrust as her wings flared wide.

The sounds of our rutting filled the small space, grunts and cries mingling with the wet slap of flesh on flesh. I grasped her hips bruisingly tight, pounding into Dash with wild abandon as I chased my release. She clenched down firmly around my pistoning length, her own climax fast approaching.

With a sharp cry Dash came undone,inner walls fluttering around my driving length. The rhythmic pulsing sensation tore a roar from me as I slammed deep one final time, spilling my seed within her clenching heat.

We remained locked together for a long moment, panting harshly as we came down from our highs. As sanity began to return I realized what we had just done, what this meant for our friendship going forward. But as Dash glanced back at me, a soft smile curling her lips, I found I couldn't bring myself to regret this. Consequences could wait
for now.