"You're sure about this?" Starlight sat up tall. "You're not exactly what I'd call a 'passive' pony. You really want to do this?"
"It's just for fun," Umbra lifted up her tiara with both hooves. "And... now they can feel it too."
"They can feel what?" Starlight took the tiara in her own magic and set it aside carefully. "You said we should make a magic word."
"Go on," encouraged Umbra. "What will the magic word be?"
"Mmm... Dawn Rising. If you say Dawn Rising, then we stop. I won't use any magic that'd stop you from saying that, so..."
"So, if I feel scared, or just not having fun, I'll say it." Umbra pawed at her armor lightly. "Now, mistress, do you want your battle prize to be so well armored?"
Starlight colored gently, not used to such words in such a fashion. "It looks good on you..." A little smile formed. "But it could look even better off of you."
Umbra snickered, but didn't push the armor off. "Should I take it off myself, mistress, or will you strip me?"
Starlight circled her suddenly new pet. "Why don't you? Slowly... I want to watch every inch." She giggled into a hoof. "This is so naughty."
"Our private little naughty time," assured Umbra, slowly pushing the armor up over her own head, revealing her chest little by little. "And now I am exposing myself, in a way I wouldn't for many others. Just as you commanded, mistress. I am yours to control."
Starlight went in and tried something new, biting at Umbra's ear. "You look as delicious as you taste, morsel..."
Umbra wriggled at the bite, tail lashing behind her. "Mistress!"
"Did I do something wrong?" Starlight recoiled with worry, but didn't get far, Umbra's magic holding her gently.
"I didn't say the magic word, mistress." Umbra was calm and patient with new new dom, a little smile on her face. "What do you wish next?"
Starlight let out the breath she had been holding. "Right! Right... Sorry." She stepped over Umbra, but not all the way, settling atop her. "You are surprisingly warm... and soft. For being such a bold and dark warrior, you make a passable pillow." She settled entirely atop Umbra. "Which pleases your mistress."
Umbra let out a feline purr. "I can think of fewer better places to be than beneath you, mistress. Renowned wizard, you defeated me in combat, but my spirit burns."
"Mmm, maybe we should fix that." Starlight pawed at Umbra's back lightly with her hooves. "Though your petty struggles amuse me... Pet, I have an itch on my back, take care of it."
"May I use my magic, mistress? I can serve you better with it." Umbra flopped to her side, looking the rest of the way up at Starlight.
"As if I'm scared of your magic. Go ahead." Starlight fuffed at her mane gently. "Show me what you can do."
"As you command." Umbra reached with her magic, tickling and stroking along Starlight's mane in a casual exploration. She thought of her magic mane, but she had taken off her tiara, denying that trick. Ah well. She stroked along the soft hair and gently scratched at the flesh beneath. "You have such a lovely mane, mistress."
"It feels better with a little care." Starlight leaned in, pressing her nose to the side of Umbra's. "Keep going... Speaking of that, yours looks so much different without your tiara." She nosed along Umbra's head, reaching her mane and nuzzling into it. "Naughty creature, I forbid you from wearing it tomorrow."
"Mistress!" But a command was a command. "You must enjoy their watching."
"That's it! I command you tell me who 'they' are." Starlight crossed her arms. "That's an order."
Umbra pushed up at Starlight's chin. "Of course, mistress. Haven't I mentioned? I am bound to Cadance and Shining Armor. Without my tiara, they can feel everything I feel. They know there's a pony on top of me. They know I like it. Oh, how curious they must be, trying to figure out why I'm feeling the way I feel..."
Starlight recoiled a few inches. "Wow... You are a dirty little mare. Sharing this with them." She wagged a hoof down at Umbra. "And here I was, feeling guilty. The real villain in this room isn't me."
Half a world away, Cadance blushed. She could feel the pressure, and the press of a mare. It wasn't Shining, she had just seen him, out, training the guards. He took that very seriously, so he'd be busy for a while. That he'd also be feeling this only made her blush worse. What was Umbra doing?
Umbra curled up to kiss Starlight's chest. "A villain caught in the hold of your gentle hooves."
"Right where you want to be." Starlight gently rubbed at Umbra's front, gazing fondly at her. Her tail lifted, tip swishing. "Maybe next time you'll win, hm? Then you can be the mistress."
"As if I could win against you." Plans were already being formed to secure that. "You are obviously the superior wizard."
"And you know it." Starlight cupped Umbra's cheeks. "Now... I want to do something... more...but I admit I'm really not sure what the next step is."
Umbra hiked a brow at that. Ponies were so innocent! "Since you're asking, mistress, there's a few things we could do. You could order me to satisfy your depraved desires. I'll make you sing with delight."
Starlight's face burned, just thinking of what Umbra just said. "Y-you'd do... Right, yes, of course, pet." She gently slid off Umbra, standing up. "Your mistress is... amused at this idea. Your mouth was annoying earlier, so let's put it to better use! I don't want to hear any more words from you."
"As you command." Umbra got the hints. Where she was going, there would be no room for words. She sat up, horn glowing as she took form hold of Starlight's rump and pulled her right over. "You have a delightfully round bottom, mistress."
"H-hey..." But Starlight didn't try to flee. "I'm not a lazy pony."
"I wasn't complaining, mistress." Umbra nuzzled that bottom, to discover that Starlight wasn't lying. She was firmer than she appeared. The fur was soft, but Starlight was an active pony and had a toned rump, concealed under that fluffy fur. "I'm impressed." She nipped, working her way towards the main event.
"You better be!" She jumped with a squeak as she felt attention where she hadn't before. "You're actually doing it." There were no words in reply. That had been forbidden. "Wow... Just... Keep doing that..." She curled an ear back as she felt a questing tongue exploring her thick equine nethers. "Is... this what I've been skipping on?" She lifted her tail high to give more room for things.
Umbra found the little button of a pony mare's delight. She didn't attack it, that was rude, and wouldn't get the response she wanted. She teased around it, and nuzzled gently, working up Starlight a little at a time. When her tongue strayed over it, only briefly at a time, each brought a sharp gasp, but didn't overwhelm the situation as she played her mistress like the fine instrument she was.
"I had no idea," admitted Starlight breathlessly, relaxing and tensing in a contrary way as her tongue began to hang faintly. "Yes... like that... You're making your mistress so very happy with you... Dirty pony, bury that snout..."
Well, she had been asked. Umbra pressed a little more firmly, getting her snoot just past the firm ring and exploring into the depths of the wizard. Her tongue began to lap and taste at the increasingly warm and wet confines of the gasping unicorn. It was a pity, she thought, that Starlight didn't play a little more often. She was clearly enjoying it. Umbra raised her hooves to keep those rump cheeks spread for her.
"By Celestia..." She curled her back downwards, rump held high. "You don't quit... do you, mmm, don't!" She pawed at the ground, digging with her hooves in jittering little convulsions of her pleased body. "With this kind of... reward, mmm, not sure I'll ever let you win."
Umbra snorted gently, an action that got a fresh jump as the air washed through Starlight. She would not lose so easily! But she had, and she would pay the price. She opened her eyes, taking her attention off the exploration of her tongue a moment to realize she was staring right into the tight back entrance of the mare. Ponies, she swiftly discovered, didn't stink. All of Starlight smelled... of Starlight, a specific scent.
She drew back and free of Starlight's mildly leaking nethers, licking her snout clean. "W-what?" Starlight looked over her shoulder. "You're done?"
Umbra was not, but didn't say that. Her actions would speak louder, and she was told not to speak. She drew Starlight back as she went in, planting a smooch right on that thick ring of muscles, like a face to face exchange, but on the wrong end, or maybe the right one?
Starlight tensed. "Oh! Oh... Is... Is that even?" She was watching over her shoulder with obvious amazement, but she wasn't stopping Umbra's slow exploring of her sensitive ring. "You are full of surprises I couldn't have guessed in a thousand moons... Dirty mare... so dirty..." And yet, she was allowing it to happen, warming with pleasure.
Umbra's horn glowed as she reached with her magic, teasing Starlight's vulva below as she teased the mare without mercy. It was too much, all too much. Starlight let out a squealing cry, a fresh wave of warm lubricant matching the arrival, but it would not be the last, oh no. Umbra redoubled her efforts, keeping Starlight singing and moaning.
"Bright dawn!"
Umbra sat back with clear confusion. "It's not usually the dom that uses that. What's wrong?"
Starlight flopped forward, tail laying flat on the ground. "That... was intense." She rolled onto her back. "Not complaining... but I needed a pause..." She heaved for breath, chest rising and falling in her effort to regain herself. "Wow..."
"Mistress, we can continue, or not. You called the magic word, we stop until you say otherwise." Umbra smiled at her vanquished rival. "That goes for either of us, which you figured out without me even making that clear."
"I'm not a foal." Starlight sat up with a final sigh. "Wow... I'm having all the fun, and you're doing all the work."
Umbra raised a brow. "You're assuming I'm not enjoying making you scream. Every part of you is fascinating, Starlight. Every. Part." She tapped at Starlight as she slowed her words. "So it's up to you, do I keep exploring the depths of the Starlight mines, or are we done for today? Or we could pivot here and start a new scenario, hm? You called the word, you're in charge."
Starlight rubbed her cheek softly. "This is all so new to me... Look, before you came along, I was a virgin. I wasn't even all that worked up about it! I didn't care! I was just living my life, and here you come, just... throwing me off the deep end."
Umbra's brows fell together in a sly grin. "You poked a shadow and found it surprisingly deep, is what I'm hearing. Again, your choice, your call. If you're done, we're done. It's your decision. I won't complain, that's how this works. You'd do the same if I said the magic word. That's respect, and how to domsub properly, because we care about each other and, ultimately, both want the other to be happy."
"I... I'm done for today." Her tail gave a lash. "But that's not because I'm mad. You were... great, and a bit overwhelming. I'm the one that can't take it... Rain check?"
Umbra tapped Starlight on her quivering nose. "You'll have to win again, or I'll be in charge next time. those are the rules we set."
"You're going down," confidently sneered Starlight, so much more confident when speaking of sparring.
"You are hoping I will." Umbra saw her joke sailed over Starlight's head, and that was fine. "Let's talk magic!"