Fluttershy let out a soft sigh, breathing deeply as Discord gently caressed her. "So?" he asked, grinning his signature snaggletooth grin. "Was I amazing as always?" The pegasus only responded with a deep, passionate kiss, catching the draconequus off-guard. "Heh." he chuckled, "Somepony's feeling bold today."
Fluttershy blushed and looked away. "S-sorry," she mumbled, letting her bangs drape back over her face to hide her expression.
Discord huffed and slithered his way around the pony so he could see her face once more. "I wasn't complaining, my dear. I was just surprised. Did something happen?"
The butterscotch pony shook her head, squirming nervously. "N... no... I'm just a bit... um... clingy right now." She said, unable to look her lover in the eye.
Discord frowned and crossed his arms. "Come on, Fluttershy. We promised to be honest with each other, did we not?" he spoke, his eyes pleading and his voice surprisingly soft. "If there's something you need to tell me about, you know I'm here to listen. Is somepony bothering you? Am I bothering you?"
Fluttershy reached out and grabbed Discord in her forelegs, holding him close. "No!" she almost shouted, squeezing him against her chest, before blushing once more and releasing him. "Um... I mean... no. It's nothing like that. I just... I'm worried. About our future." she spoke, eyes searching his to try and convey the meaning of her vague words. Discord only blinked in confusion. As much as he thought he understood ponies and their naive mentality, his dearest Fluttershy always made him feel lost. Had he not sworn himself away from mental manipulation, he would happily spend hours in her mind, trying to make sense of her thoughts. Maybe then he could figure out how to make her happier. He was drawn out of his own internal soliloquy by his wife speaking up once more. "When I was in the market earlier today, I saw a couple out for a walk, pushing a stroller," she whispered. Discord looked at her searchingly, his gaze pushing her to continue. "Would you ever want to be a father?"
Discord frowned slightly and raised his brow. "I never really thought about what it would be like to raise a foal." He replied honestly, before giving her a small grin. "Though if I was ever going to be a parent again, I'd certainly like to raise one with you."
Fluttershy beamed happily, snuggling up against his fluffy chest for warmth. "I think I'd like that." She replied softly. "I think you'd be a good fa-" Her mouth stopped moving suddenly as Discord's words caught up to her. "W-wait!" She cried out. "Y-you mean you've had a foal before?" Discord blinked in confusion, before suddenly breaking into a snicker... followed by hysterical laughter. "Discord!" Fluttershy shouted, sitting down on his chest and giving him a stern glare. "This isn't funny! I thought you said I was your first love! You've had a foal with another mare before?"
Discord tried his best to calm his laughter, seeing how upset his wife was. "No, no, my love. You've got it wrong. I never lied to you. You are the first pony I loved, and the first mare I laid with."
Fluttershy blinked tears from her eyes. "But... didn't you just say you've been a parent before?"
Discord chuckled awkwardly, scratching the back of his neck. "It's... a long story. It happened just before I was trapped in stone, actually. I had a feeling the ponies were getting grumpy with me. I never actually expected to lose to them so soon... but I decided I wanted to have a backup plan, so if I was imprisoned or killed, my chaos could live on." Reaching out and snapping his fingers, he summoned a pitcher of supercooled water, sipping at the way-below-freezing liquid and letting out a sigh.
The pegasus pony frowned and continued to stare at Discord, her gaze encouraging him to continue. "You're not making any sense. How would you have that foal if you never slept with a mare?"
Now it was Discord's turn to blush. "Well... I couldn't just trust somepony else to take care of my legacy. I doubt there was any pony alive back then who would happily bear the heir of chaos. So... I decided I would do it. You should know by now that I am more than capable of turning myself into a pony. It wasn't much harder to turn myself into a mare instead."
Fluttershy stared at him for a few moments in confusion, her thoughts swirling around in her mind as she struggled to comprehend what he was saying. "So... you had the foal?" She asked, tilting her head to the side. "Then... who was the father?"
Discord shrugged, taking another swig. "Don't really know. It was some drunk stallion in a tavern. I just wanted to get it over with, so I mind controlled the first male I found. Don't even know his name."
Fluttershy turned her head to the side, continuing to frown slightly. "What happened after? You said you didn't end up raising the foal."
Discord let out a sigh, setting down the glass and allowing it to melt into a pile of sand, entropy returning it to its original state. "I was planning on raising them to be my heir, and assist me in my chaos... but I made a mistake. I tried to give them chaos magic... but... it didn't take properly. The magic itself was sealed inside their body, unable to be accessed. Being stuck inside a harmonic being such as a pony... the magic solidified into a hard shell. It would have needed a force as strong as the Elements of Harmony to shatter such a barrier and free the magic for the pony to use. I, of course, wasn't even aware of those artifacts' existence at the time."
Fluttershy's frown deepened. "What.. happened to the foal?"
Discord looked away from her, staring out the window. "When Celestia and Luna confronted me, I knew my time was nearing its end. I don't know what they would have done with such a foal, had they known where it came from, so using the last of my strength as I was turning to stone, I transported the poor filly to the doorstep of a small orphanage far on the outskirts of Equestria, with a letter telling them to take care of her."
Fluttershy sighed, leaning in and holding her husband tight. "Even back then, you must have cared for that little foal, didn't you?"
Discord let out a huff. "I suppose it was that damned 'maternal instinct' you ponies always talk about. I have no idea what happened to her afterwards, as she's long gone now. I wonder if the chaos magic inside her survived? I designed the spell in such a way that it would be passed on to the next generation if she herself had a foal. I did desire a legacy, after all."
Fluttershy blinked in surprise. "So, you might still have a living descendant? I'm sure if you wanted to, we could ask Twilight. If anypony could track down your relative... it'd be her."
Discord chuckled, leaning back with his paw and talons behind his head. "You know... I think I'd like that."
Fluttershy nodded, laying her head down on his fluffy chest. "We can write to her in the morning and ask. I'm sure she'd be happy to help a friend reconnect with his family. Did you ever name the filly? Having a name would help with the records searching."
Discord cracked a smile. "Yeah, in the letter I sent to the orphanage I left her name. 'Silly String.'"