I stretched out languidly on the bed, the soft covers providing me with a substantial amount of warmth and comfort, and let out a contented sigh. After three months in Ponyville General Hospital, I was finally out — and living with Dusk Shine in the library.
While I was in the hospital, I was visited every day by Dusk. We talked about various things, such as our lives and interests — but his main priorities were teaching me about Equestria, and learning all he could about human anatomy.
During the three months, I began to realise that I saw this stallion as more than a mere friend. In fact, I had fallen hopelessly in love with him. To my surprise, it was actually Dusk who made the first move — kissing me passionately one night after we had finished a discussion about failed relationships. We were thrilled to discover that we both felt the same way, and so we became a couple.
I smiled at the memories flooding my mind and cocooned myself within the quilt, just as the door opened and Dusk walked in. I paid him no mind as he walked over and poked me with a forehoof. I grunted at him, to which he responded by climbing onto the bed next to me and kissing my forehead.
"Geo," he cooed. "Remember that you've still got to help me with my research on your species' anatomy. Princes Solaris and Artemis gave me a job to do, so you'd better believe I'm going to do it!"
"Five more minutes," I grumbled, swatting at him as though he were a troublesome fly. "Actually, make that five more days — this bed is really comfy, and far superior to the one I spent three months using while I was in the hospital."
Dusk clicked his tongue. "Fine," he replied. "We'll just have to do the research here." He lit his horn and levitated the covers off me, tossing them to one side. "Now, we can get started." I glanced down at myself and saw that, for whatever reason, I was as naked as the day as I was born. I yelped and covered myself up, only for Dusk to hold out a forehoof. "Wait." He said. "Those bumps on your chest are what I want to study next."
"B-bumps?" I asked, before realising what he meant. "Oh... you want to study my breasts." He smiled and nodded. "Uh, well, what do you want to know?"
"Breasts," Dusk repeated the word a few times as he tapped his chin with a forehoof. "Well, I guess the first thing I'd like to know is whether they have any function. Can you do anything with them, or are they just for show?"
"Well," I replied. "I'm no expert, but I do know that they produce milk, which can be drank by our young. The baby simply suckles at the nipple—" I uncovered one breast, showing him what I was talking about, "— and then drinks as much as it wants or needs."
"Fascinating," Dusk replied, scribbling on a notepad. "Mares don't have breasts, so they feed foals with a formula which is designed to provide maximum nutrition. Have you ever been pregnant, Geo?"
I shook my head. "Nope," I said. "And I don't think I ever will be, either. I'm the only human here, and I'm pretty sure that my DNA is incompatible with that of a pony."
Dusk nodded solemnly. "Indeed," he murmured, making some more notes. "Now, back to the subject at hoof — can I get a closer look at your breasts? I'd like to measure them." My eyes widened at this statement and I shrank back, which didn't go unnoticed. "Please, Geo, it's for science." He smiled hopefully.
I sighed. "Fine," I groaned, lowering my arms. "But make it quick, and don't get too adventurous."
Dusk levitated a tape measure over to him and clambered onto the bed. I sat upright, giving him a better view, and allowing him to wrap the tape measure around my chest. He held it in place with a forehoof, muttering to himself as he worked, and eventually he looked up at me. "Thirty-eight inches," he said. "That's... smaller than I was expecting. You have quite a svelte figure."
"Thank you," I said, beaming from ear to ear. "But might I ask why you didn't hold the tape measure in your magic?"
"Holding things in my levitation aura is a drain on my magic reserves," Dusk replied. "I just didn't see the point in wasting any of it by holding such a small object."
"Oh," I said. "Well now that you're done... perhaps you can stop touching my boobs and let me cover my modesty?"
Dusk blushed slightly as he realised he was still touching me and quickly drew his forehoof back. As he did so, he brushed it across my left breast. The fur on his forehoof tickled the nipple, and I found myself unable to suppress the sudden moan which escaped my lips — at which point I clamped my hands over my mouth.
"W-what was that?" Dusk asked. "Are... are human breasts an erogenous zone or something?" He picked up his notepad.
I removed my hands from my mouth, the heat in my cheeks threatening to engulf my head in flames, and nodded meekly. "They can be used during intercourse as well," I muttered. "The nipples are quite sensitive to stimulation, such as when your forehoof brushed across it, and this can be used to—"
"Induce arousal?" Dusk interrupted, pointing at the bed. I looked at where he was pointing — only to gasp in shocked horror at the dampness forming between my legs. "I'm sorry, Geo, I couldn't help but notice it... as well as smell it."
"Dammit all to Hell," I whimpered, noticing as Dusk shifted on the bed. I glanced at him and he blushed, looking away from me, which in turn drew my attention downwards. "Well, well, well." I said with a grin. "It would appear that I'm not the only one whose arousal was induced." I pointed at his rock-hard cock.
"I-I... well, you see..." Dusk stammered incoherently for a moment, before he suddenly grabbed me and delivered the most passionate kiss I have ever received in my life. I let out a muffled gasp, but soon returned it with just as much fervour — at which point Dusk lunged forwards and sent me onto my back. As we separated, we gazed into each others eyes. "I think you're sexy, that's all."
I grinned. "I'm not going to deny it," I replied. "I think you're sexy as well, Dusk. And to find out that you can turn me on with just a single touch..." I fondled my breasts as I spoke, squeezing them together. "It makes me want you so much more."
"So..." Dusk paused for a moment, his breathing getting faster by the minute. "Where do you propose we go from here?"
I sat upright and gently rolled Dusk onto his back, then lay on my stomach so that I was eye-level with his member. "I think we both know the answer to that question," I said with a grin, reaching out and gingerly wrapping my fingers around it. "Now you just lie back and let me figure this out."
Dusk let out a small moan as I began stroking his throbbing dick, slowly working my way up and down the mottled length of flesh. My fingers danced around his shaft, eventually becoming slick with the pre forming at the head — which only served to make the handjob I was delivering all the more sensual.
"Mmm," Dusk whined. "This is so much better than all those times I used my hooves, or even my magic." He gazed dreamily at the ceiling. "Please, Geo, I want to see how fast you can go."
I nodded, winking at him as I increased the speed of my hands. I even added my other hand to the mix, both of them going like pistons along the length of eager pony cock. I leaned in to get my first taste of pre – which tasted salty, yet with a faint trace of lavender – and giggled as some of it got on my tits.
"Such a messy stallion," I said, stopping the handjob and licking my hands clean. "What am I supposed to do with you?"
Dusk licked his lips, a soft whinny escaping him, and looked me in the eyes. "You said earlier that breasts can be used during intercourse," he said. "Can you show me what you meant by that?"
I looked down at my breasts, which were still spattered with precum, and nodded. Without a word, I pressed my body against Dusk's — placing his rod in my cleavage. I squeezed my assets together and began moving up and down, the slickness of our bodies ensuring there was no friction.
"Like this?" I asked sultrily. "I'm guessing you like it?" Dusk nodded eagerly. "There's another way of doing it, you know."
With that, I lay on my back – pulling Dusk with me – and looked up at him with a grin. Almost immediately, he got the hint — at which point he shoved his cock into my mouth and began thrusting away like a stallion possessed. I moaned blissfully, savouring the taste of his excitement while Dusk grunted incoherently. He soon slowed down, however, and looked at me. "I think... I think I'm about to cum, Geo" he said. "Do you want me to stop?"
"No," I replied sternly, taking him out of my mouth with a wet slurp. "You keep doing what you're doing, and let me taste you properly." I let out a throaty growl. "I want you to spray a hot load all over me, so don't you quit now!" With that, I resumed sucking.
Dusk nodded and resumed thrusting, planting his forehooves on my chest and fondling my breasts. The fur on the appendages tickled my nipples, which – combined with the vigorous titfuck – made me moan with such intensity, I could probably be heard in Canterlot.
"Just like that, Dusk," I panted, putting a hand between my legs to rub at my dripping wet slit. "Just a little more, don't stop!" I slid two fingers inside myself, squirming furiously as I pumped them in and out at a blistering speed. "Oh, Dusk..."
He put his head in my neck, his moaning tickling my ears. "Oh, Geo," he breathed. "I can't... I can't... OH, FUCK!"
I screamed the stallions name as we both came, the bedsheets becoming soaked with months of my pent-up frustration. At the same time, a large glob of cum shot out of Dusk's cock and splattered all over my face and chest. Panting heavily, he rolled off of me and onto his side — and then grabbed his notepad and quill.
"With thanks to Geo, I have determined that human breasts have a variety of functions — some of which I can't go into any further details about," he wrote. "But take my word for it when I say that they can be a lot of fun."
I rolled my eyes at this as Dusk chuckled to himself, before I leapt on top of him and planted another passionate kiss on his lips. His eyes widened in shock, but he soon relaxed and put down his notes so he could kiss me back.
Ten seconds of tongue wrestling followed, before I pulled back and gazed into his eyes. "We're not done yet," I said sultrily, rolling onto my front and getting on all fours. "Take me, Dusk. Take me now."
Dusk looked at me warily. "Are... are you sure?" he asked. "Because I remember you telling me that you're a virgin, so—"
"You don't have to worry about hurting me," I interrupted. "Let's just say that yours will be the first real cock I've had up there, and leave it at that." I wiggled my butt seductively. "Now, are we doing this or not? It's not polite to keep a girl waiting."
Dusk nodded and got behind me. I grinned, eagerly awaiting was about to happen — an eagerness which was heightened when he mounted me and pressed his dick against my wet slit. I reached around and grabbed it, rubbing it a few times before I finally decided to stop messing around and guide him inside.
I moaned, a mix of pleasure and pain, as the thick rod spread my pussy apart and delved further into my depths. Dusk hilted within moments, not even half of his length encompassed by my walls. He drew his hips back and forth slowly, as though he was letting me adjust to the raw and lustful sensations which accompanied being fucked by a pony. I moaned in appreciation, finally happy that this was happening after so long.
"Mm, yes," I whimpered. "That feels so good, Dusk, but might I make a suggestion?" I paused for a moment. "Go faster."
He responded by first nipping at my neck, his weight forcing me deeper into the bedsheets, and then by increasing the speed of his thrusting. My heartbeat was thundering in my ears, my breaths were quick and shallow, and the only noise I could hear was the sound of Dusk's heavy balls slapping against my pussy.
"Oh, Solaris," Dusk groaned. "This feels so good!" He licked the sweat on my neck and brought his muzzle to my ear. "I love you, Geo." He said breathlessly. "I love you so much."
I reached up a hand to touch his face, caressing his cheek softly. "I love you too, Dusk," I replied. "I love you more than words can say." I grinned devilishly. "Now they do say that 'actions speak louder than words,' so why don't we put that to the test?"
Dusk nodded, continuing to thrust into me at a blistering speed. I could feel my vaginal walls gripping at his cock, massaging it in an attempt to milk as much spunk as I could from him. I could feel the tip of his rod as it reached the end of my love tunnel. And I could feel Dusk's heart racing as he fucked the absolute hell out of me.
Pressure began to build up in my nethers, and so I quickly started rubbing my swollen clit. "I'm so close, Dusk," I said. "Please, hurry up and give me all you've got — make me your woman!"
Dusk nodded so fast, I thought his head would fall off, and he began pumping me like it was his last day on Equestria. I felt his cock flaring inside me, but the pleasure I was experiencing overrode the pain, and soon – with a loud whinny – he climaxed.
I came too, as Dusk shot load after load of hot stallion jizz deep into my aching entrance. He held himself in place, thrusting wildly as he emptied his balls, while my own orgasm seeped down my legs and covered the bed in our combined fluids.
We both collapsed, spent and glowing with satisfaction. Dusk slowly dragged himself off me and rolled onto his side, facing me for a moment before giving me a tender kiss. "That was amazing," he said softly, as his expression turned into a more concerned one. "I... I didn't hurt you, did I?"
"There was some pain," I admitted. "But believe me when I say that the pleasure soon made me forget all about it. And you're right, it was amazing." I grinned at him. "Though it has to be said that this is one report for Solaris and Artemis that I'd rather you didn't send, know what I mean?"
"Understood," Dusk replied. "Once I've recovered some more, I'll be sure to do the study again... provided you're up for it, that is."
I put my arms around him. "Dusk Shine," I said. "As long as you and I are together, I'm up for pretty much anything."
With a final kiss, the two of us dozed off — heralding the start of a new chapter in our relationship.
*** THE END ***
Author's Note
Behold, the first piece of Rule 34 I have ever written that makes use of Rule 63! Take a good ~~hard~~ long look at this pile of dreck, because I probably won't be doing anything like this again... unless of course there is sufficient demand.
You're probably wondering why Rule 63 Geo is also called 'Geo.' Well, as you know, 'Geo' is a shortened version of 'GeodesicDragon' — so that means Rule 63 Geo would be using the name 'GeodesicDragoness' (since 'dragoness' is the term for a female dragon).
I'm pretty sure I don't need to explain any more than that. 
