Smolder's mind was running wild as she considered the possibilities of where this carriage was headed. Or, at least it was trying to run wild. But when the vibrator inside her nethers started up, her brain seized up in pleasure as she tried to close her legs around her thick diaper, which was dry but was very slowly becoming slightly wet with the dragoness' arousal. The hippogriff sitting on top of the carriage with her brother outside never kept the vibrator on for long, seemingly content to tease her friend, and possibly keep her mind from focusing too hard on where they were headed.

She was pretty sure that Silverstream and Terramar were making several unnecessary turns throughout town to throw off her sense of direction as well. Honestly, it was working. When the carriage continued its slightly bumpy ride straight, she had no idea in what direction.

As hard as she was trying to keep track of the time, her mind was turned to her diaper every time Silverstream activated the vibrating egg within her, and she was maddeningly random with it. Sometimes she'd go for just a second or two, and other times it seemed like it was half a minute, and the intervals in which she teased the dragoness were just as random; it could be every ten seconds, or it could be two or three minutes before the next one. After a time, Smolder decided to just give up, relax in her padding and feel like a pretty princess.

The road seemed to get a bit more bumpy, really making her wonder where they were headed. Silverstream turned the egg on for the next bump, and it caused Smolder to gasp in pleasure again. It didn't last long, as it ceased vibrating after just a few moments.

After a few more minutes, she felt the carriage come to a stop. A few moments passed, and her door didn't open. She sat there curiously for just about two minutes, until the door was opened, and it was by someone who had not been with them on the ride, as she looked down at Sandbar, also diapered, standing next to the carriage steps, holding the door. The surrounding area was forested.

"Hey there, Smolder. Everyone else is waiting inside," he greeted, stepping aside and ushering her out of the carriage. "You look fantastic, by the way," he complimented as she stepped outside. She smiled at him in gratitude as her feet hit the ground, and saw where they stood; several dozen feet from the Treehouse of Harmony, sitting like a beacon of light in the Everfree Forest evening.

"Thanksss-ah!" Smolder said, stumbling in her first step as the vibrator inside her gave a brief, intense pulse.

"You alright?" Sandbar said as the dragoness quickly regained her footing.

"Y-Yeah. Still getting used to this dress, that's all," she replied, standing again as the vibrator shut off once again. That remote of Silverstream's had an impressive range. She and Sandbar walked, crinkling with each step, up the path to the front doors of the treehouse. Together, they stepped through, and Smolder's eyes widened at the setting the main room had been turned into.

It was a classroom at immediate glance. A chalkboard had been set up in front of the room. In front of that, four student desks. To the left of the chalkboard, an oak teacher's desk sat, where Silverstream currently sat, in a professional looking blouse, her normally wild light blue and gray mane tied back in a bun. The line of desks were half full currently, with Terramar and a mare Smolder didn't recognize, who looked quite similar to Sandbar. Above the chalkboard on the far wall, was a simple poster listing the rules of the 'classroom'.

DETENTION RULES
1. Keep quiet; do not speak unless called on.
2. Respect teacher's authority; do exactly what you are told.
3. Infractions will be punished.

"There you are. Please take your seats. With everycreature here, detention can finally begin," Silverstream announced from the desk.

Sandbar went to the center right desk, sitting next to the mare, and Smolder took the only other available seat, the center left one, sitting next to Terramar. Silverstream stood up, revealing she was also wearing a slender black skirt.

"Alright, now that attendance is complete, I believe we'll begin with writing lines. Princess Smolder, since you were tardy, I believe you can be first. Please step up to the board," Silverstream instructed, leaning back against the side of the desk, and subtly clicked Smolder's vibrator to low.

Smolder quivered as she got up from her desk almost immediately after sitting down. She stepped up to the board, trying her very best to ignore the vibrator in her, and picked up the piece of chalk in her claws.

"You will write the following a hundred times. 'A Princess does not lie about her potty training.' You may begin.” Silverstream instructed.

Her cheeks flushing, Smolder took a breath and tried to push the vibrator's sensations to the back of her mind as she touched the piece of chalk to the top left corner of the board, and began to write.

A PRINCESS DOES NOT LIE ABOUT HER—

Suddenly, the vibrator gave a surge of intensity, and the tail of her 'R' squiggled out of control as she let out a gasp and her legs quivered.

"My, such unstable writing, You can do better than that, Miss Smolder," Silverstream chastised as she clicked the vibrator back to low.

Smolder grabbed the eraser that had been resting next to the pieces of chalk, and wiped off her sloppy 'R', then returned to her writing. She shuddered as she continued and finished the sentence, as well as the first repetition of it, unsure of how much more teasing she could take, as she felt herself continue to drip into her diaper. As she began the third sentence, beginning a second row on the board, Silverstream increased the vibrator up to the second lowest setting and kept it there.

Silverstream smirked as her roommate struggled to write through her arousal. Her little brother sitting at her desk also seemed a bit flustered, as did Sandbar, who appeared a bit envious of the dragoness. For her part, Ocellus, in her 'Dawn' form, slipped a hoof down under her desk to start to touch herself.

Through Smolder's second set of ten sentences, Silverstream slowly became more merciless with the vibrating egg inside her, no longer going down to the lowest setting. Smolder's handwriting only marginally improved through the increasingly harder to ignore toy trapped inside by her diaper. The mischievous hippogriff was getting no shortage of satisfaction from her roommate's struggles, and she gave her yet another dose as she turned the vibrator up to max for another two seconds, causing her to lose her balance and drop the chalk to the floor.

"Ah...!" Smolder whimpered.

"Oh for goodness sake, what is the matter with you, Miss Smolder? Do we have to find another method of punishment for you?" Silverstream mock-admonished the dragoness.

"S-Sorry, ma'am..." Smolder apologized, getting down to her knees to retrieved the chalk, and Silverstream immediately seized the opportunity.

As Smolder grabbed the chalk and attempted to return to her feet, a claw on her shoulder prevented her from doing so.

"Actually, stay down there, Miss Smolder. I doubt your writing is going to improve any while you're as hopelessly horny as you are right now," Silverstream said, using her other claw to go underneath the layers of the dragon's dress and press firmly into the seat of her diaper.

Smolder was nearly drooling by now as she moaned, biting her bottom lip.

"I do suppose we'll have to solve that... Good thing I brought this..."

Silverstream removed her claw from Smolder's diaper, and reached behind herself to unclip her skirt. As it fell to the floor, Smolder's eyes widened as she was now staring at a well-endowed, lubricated black strap-on dragon dildo fastened around Silverstream's waist.

"Stay on your claws and knees and face that wall," Silverstream instructed, firmly, pointing at the right wall of the room.

Blushing fiercely, Smolder turned away from her roommate and faced the other side of the room, risking a glance at her 'classmates', and the penny finally dropped when she saw the mare's eyes glow a vibrant green for a moment.

Ocellus.

She heard the cap of a bottle being popped open.

"Come now, present yourself better than that, Miss Smolder. Raise your tail up," Silverstream told her in her stern headmistress persona. Smolder took another breath then used her tail strength to push against the layers of her dress as best she could.

"Hm, better, but maybe you need some help."

Smolder felt the back of her dress being pulled back and up over her lower back and wings, exposing her thick diaper.

"Let's get this out of the way too..." Silverstream said, untaping the third set of tapes around her tail. The diaper began to fall away, exposing her tailhole, but the waist tapes kept her dragonhood hidden behind the diaper, and thus the vibrator had nowhere to go.

"Hm, doesn't quite reveal everything I'd like it to, but I suppose I'll have to make do with what I have. I'm certainly not taking the whole thing off. After all, you are clearly not potty trained, and I won't have you leaking all over my floor. So... this hole will have to suffice."

Smolder gasped as Silverstream's lube-covered claws slowly intruded into her tailhole, getting as much of the surface area covered as she could. This sort of intercourse was covered in Counselor Trixie's class, and while she wasn't experienced with it, dragons were naturally... Flexible in that regard.

Sure enough, Silverstream's claws pulled out, and the head of the dildo immediately pressed against her back entrance, and it went in with only mild pressure and discomfort. What it also did, was provide even more surface area to close in around the vibrating egg, and she moaned in pleasure.

"Well, this is going in easier than I thought. What are you up to outside of school hours, Miss Smolder?" Silverstream asked as she continued to sink her strap-on into the dragoness. Once it bottomed out, Smolder gave an open-mouth moan, drooling onto the carpet as she held herself up by her claws and knees. "And what did I say about staying quiet? I can get help with that too. Mr. Terramar? I see that you are rather flustered over there. Please use Miss Smolder's maw for some relief."

Both Terramar's and Smolder's eyes widened.

"Come on now, we don't have all evening. And do watch the teeth, Miss Smolder. If you don't, there will be lashes; from myself and your classmate."

At his sister's urging, Terramar left his seat, and walked over to the front of Smolder, who saw that the male hippogriff was already unsheathed. He saw her exhale with a vent of bright pink flames quickly evaporating inches away.

"B-but what about... Fire, Miss Silverstream?" Terramar asked nervously.

"A valid concern, seeing as how you aren't versed in dragon physiology. Don't worry. A dragon's fire has many different temperatures based on their emotions. Arousal fire is only soothingly hot, never painful, so don't worry. Go ahead, you'll see." Silverstream instructed, pulling out the strap-on halfway before thrusting back in, getting another moan of pleasure out of Smolder.

"Again, please quiet her down. Don't make me tell you again, Mr. Terramar."

Gulping nervously, Terramar stepped forward, sat down, and spread his hind legs, believing it would be easier for Smolder to lean down, which she immediately did.

"And please feel free to share how your experience is with the rest of your classmates," Silverstream told him as she slowly increased her pace.

"Ahh... Ah... Warm, very warm... Almost hot..." He managed to say as he locked eyes with Smolder, unable to deny the sultry desire in her eyes as she wrapped her tongue around his shaft as she began to suck earnestly, smoke rising from her nostrils.

"And when he finishes, do be on your best behavior and swallow it all, Miss Smolder. No messes on my floor, understood?" Silverstream asked as she continued to thrust into Smolder's rear end.

Smolder couldn't exactly respond, or even nod, as she was minding her teeth as she was coating Terramar's erection in as much saliva as she possibly could.

For their part, Sandbar and Dawn Ocellus were certainly enjoying themselves; Dawn continuing to stroke her marehood, and Sandbar had begun to press his front hooves into the front of his diaper.

Suddenly, Smolder tensed up and let out a muffled squeal around Terramar's erection, and Silverstream hilted the dildo in her and held it there for a moment until she relaxed.

"Is she okay?" Terramar asked.

"Oh she's fine, she just came, that's all. Her punishment isn't over until she helps you cum, Mr. Terramar," Silverstream told her little brother nonchalantly, before continuing to rut her roommate. Smolder snorted out several breaths of pink fire, which Terramar thanked the stars didn't so much as singe his coat or down feathers. After catching her breath, she resumed sucking with even increased fervor, as Silverstream reached over and kicked the vibrating egg past its medium setting. For his part, Terramar began to softly thrust towards Smolder's mouth, hoping he wouldn't brush against any teeth.

"Ahh, I think I'm getting close, Smolder..." Terramar warned.

"Remember, get it all into your mouth, and swallow it. Not a drop on my floor, understood?" Silverstream warned.

Thinking it would help, Terramar stopped thrusting, delaying the inevitable for only a moment, and Smolder only tightened the seal of her lips around his shaft, gripping it tighter with her tongue.

Terramar held back as long as he could, but the dam was about to break. In a particularly daring move, he took hold of both of her ear fronds, often mistaken for horns, and pulled her down as far as she would go, just in time for him to erupt, spilling his seed into the back of her throat.

She swallowed immediately, only for more to fill her mouth. Silverstream saw the expression on her brother's face, as well as how he was holding Smolder's ears, and hilted in her one more time, causing her to hit a second orgasm. Smoke and pink flames flowed from her nostrils with every breath. She swallowed a second time, and felt Terramar begin to die down, as his grip on her ear fronds loosened. As he decreased to a dribble, she swallowed a third time, and gave the tip a slow lick to make sure she had gotten all of it. He released her fronds, and she slowly pulled herself up.

"Not... Not bad," she complimented, looking up into his eyes.

"Thanks... You're my first, and probably only dragon..." Terramar replied, catching his breath and blushing.

Smolder felt Silverstream slowly pull out of her, feeling like she was relieving herself as she did so, and felt very empty when the dildo head popped out. The hippogriff was quick to re-fasten the third set of tapes of her diaper around her tail, and lower her dress again, nearly concealing it were it not for her position on all fours. She then finally turned off the vibrating egg inside her.

"Very good, Miss Smolder. Everyone was quite well behaved, so if you like, we can head into town for a treat before everything closes," Silverstream said, as she removed the strap-on in addition to the blouse on her topside.

Not quite having the strength to get to her feet yet, the recovering Smolder continued to lay on the floor in front of the chalkboard, and felt an urgency down where Silverstream had just pulled out. She hadn't used her diaper for that purpose before, but it didn't make much sense to ask for a bathroom break, when her 'teacher' would almost certainly say that she was already wearing her bathroom. Due to her nearly exhausted muscles, she barely had to push, and the slimy ooze slid out into her diaper.

After she was done relieving herself, her belly full of hippogriff seed and diaper full of her defecation, Smolder got to her feet, and she and Terramar tried their best not to wobble back to their desks. She glanced at Sandbar and the transformed Ocellus, and concluded that she and the male hippogriff were the only ones to achieve release so far.

"Dessert sounds delicious, Miss Silverstream," Ocellus' transformation claimed cheerfully.

"Alright then, class dismissed, everycreature out to the carriages!"

As a group, the five friends filed out of the glowing treehouse, Silverstream the last one out and closing the door. Ocellus gave Sandbar a kiss before entering the carriage, and it was apparent that they were both in the mood, as they hadn't quite gotten as far as Smolder and Terramar had in there.

"Hey, Sandbar?" Smolder called over to the stallion as he was about to enter his carriage.

"Yeah?" Sandbar replied, turning and walking towards the dragoness, diaper crinkling with each step. He came up to her and gave her an honest smile.

"I... I wanted to thank you, Sandbar. For not letting what Gallus did to you change you in any way. You are an amazing friend. To let us see you like that, and putting something like this together for me... What he did to you and Ocellus is wrong, I don't care what depression does to a mind. It doesn't change the simple fact that it was wrong. So just, thank you for not letting it change you into somepony worse."

Sandbar's smile widened, and he stepped forward and pulled Smolder into a hug, squeezing her gently before stepping back.

"All of you immediately accepted this side of me when you saw it, how could I not do the same? Thank you, but you might be giving me more credit than I'm due. I really can't promise that I won't turn into a frigid, bitter asshole if I ever come face-to-face with him again," Sandbar admitted.

"I think you're in plenty of company there. You really think you're the only one who thinks it would come to blows if he ever dares show his face here again? Let me just say this; I'd proudly hold him down for you and let you go to town."

Sandbar smirked.

"Again, thanks. And as for putting this together? Ocellus and I just helped. If you want the chief architect, then look no further than your passenger for the ride home," Sandbar continued, pointing a hoof towards the second chariot, where Silverstream was waiting.

Smolder glanced back at her hippogriff friend, then back to Sandbar.

"There's something there, isn't there? Something more than friendship," she asked the stallion.

"I think that's something only the two of you can figure out," Sandbar answered.

Smolder smiled at him.

"Thanks again, Sandbar. I think I'll be spending a lot more time over at your place," she said.

"Anytime you want, Smolder. Let's go enjoy the rest of our night," Sandbar said as he gave his friend another hug and then boarded his carriage. The dress- and diaper-clad dragoness walked down to her carriage and stepped ahead of the closed door to look up at Terramar in the driver's seat.

"Thanks for the new and interesting experience, Terramar. Whatever you're ordering tonight is on me, and tomorrow too for that matter," Smolder told him. He smiled down at her.

"You certainly gave me an experience too, Smolder. I never would have done it if it wasn't for my sister, though. Thanks to her, I've had my first intimate experience with a pony, a changeling, and a dragon. I don't believe I'm going to be topping that anytime soon," Terramar replied, blushing at the cheeks.

"Well, just do me a favor?"

"Name it."

"Please try your best to ignore any noises you hear from inside the carriage on the ride back, thanks."

With that, Smolder opened the carriage door, and pulled herself up and inside, closing it behind her, where she found Silverstream sitting and waiting for her.

"There's my favorite dragoness," Silverstream greeted again. "My, it smells like you need a ch—"

The hippogriff never got the chance to finish her sentence as the princessly Smolder put her right claw behind her neck and gently pulled her into a kiss, prodding and opening her beak with her tongue. Silverstream felt a surprising warmth enter her throat, and her eyes widened as she realized her roommate was breathing fire into her. But it wasn't painfully hot. It was much more comparable to a soothing heat, like a hot cocoa on a cold day. The hippogriff softly inhaled as she leaned into the kiss for several moments, before the dragon parted.

Silverstream let out the breath, and saw a hazy smoke exit her beak.

"Wow... That's different," the hippogriff admitted as the dragoness looked into her eyes.

Slowly, Smolder dropped to her knees in front of her roommate.

"Yes, I do need a change, but after what you just did for me tonight, I think I need to earn it," Smolder told her, coming forward on her knees, leaning forward, putting her claws on the hippogriff's inner thighs and slowly parting her legs. As she brought her snout in to take in the scent of Silverstream's nethers, she looked up into the hippogriff's eyes, silently asking for permission to go further.

Giving Smolder a soft but only mildly surprised smile, Silverstream nodded. Smolder smiled in return, and her gaze fell to the prize directly in front of her. Extending her tongue from her snout, she eagerly began to show her gratitude...

Author's Note

Apologies for the delay between this chapter and the last one; I was honestly disheartened by the lack of feedback on the last chapter. But this one was where the goods were.

Only a short epilogue to follow, and maybe another story, but only if it's desired by you fine folks.

Once again, thanks for reading!