Welcome to the Show, Twilight

“There we go, Slutlight,” Celestia said and stroked her back with her hoof, “Now, time for the announcement.”

“A-announcement?” Twilight managed to pant out against the floor.

“Of your changes,” Celestia said, “We need to relocate to the balcony, ponies should have started to gather by now. If you were the size of a regular pony, I would have had a harness for this, but I think you just have to move along with me.”

“B-but…” Twilight whimpered, “C-can hardly move…”

Celestia hmmed and stroked her back and rear, “How about we try that you roll over and cling to me while I carry you in my magic?”

Twilight pulsed around her teachers massive cock, having already climaxed twice already, “I-I think you have to help me,” she admitted, her face burning.

Celestia grinded softly into her before she giggled and started to slowly back away, pulling the smaller alicorn along before gently rolling her, lifting her in her magic.

Panting against her teachers chest, Twilight did her best to hold on to her as Celestia carefully stood up. The first step causing Twilight to moan and tremble, “B-buck…”

“Mmm… this is a bit tricky with you, “Celestia admitted, walking carefully, “I can barely walk, you’re so big. This is why I prefer petite pegasi and a proper harness, you can barely notice they are there. Do you think Fluttershy would like to try it?”

Beautiful gentle Fluttershy, moaning and stuffed with Princess Celestias giant cock.

Moaning at that mental image, Twilight tried to cling to her, her hot walls pulsing around that massive cock.

Sunlight suddenly drew Twilight’s attention away from the massive cock rocking her at each thrust and Celestia moved to sit down close to the edge.

A glance over Twilights shoulder revealed that there were thousands of ponies gathered in the square below, all of them looking up towards them.

“My little cocksleeves,” Princess Celestia spoke up loudly, her magic slowly running across Twilight, starting to slowly bounce her around her massive shaft, “Some of you may have noticed some changes to Princess Slutlight the last few days. There is nothing to worry about, she has simply taken on the aspect of thestrals instead of pegasi. While the thestral subtribe is rare compared to the more usual pegasus, they are no less ponies.”

Twilight could do nothing but cling and moan, shuddering as that massive cock shifted in her at each bounce, spreading her to her limits.

“Spread your wings, Slutlight,” Celestia told her softly and Twilight did like she was said without even thinking about it before Celestia continued, “As you all can see, Princess Slutlight has the aspects of a thestral. Wings, eyes and a tongue perfect for licking pussy.”

Celestia tugged down hard around her big cock and Twilight couldn’t do anything but cry out, climaxing hard around her as she squealed. Celestia groaned and slammed her cock up into the smaller and cumming alicorn, cumming along with her for the first time, flooding her with copious amounts of hot sticky seed, forcing it to leak out around her massive shaft.

“As anypony can see, she still cum like any other pony,” Celestia said with a smile, stroking the smaller and heavily panting alicorns ears, “But that’s all for now, my little cocksleeves. I hope you all have a wonderful day.”

Twilight just panted for breath and tried to cling to Celestia, her face burning as the crowd erupted in a sudden cheer behind her.

Standing up again, Celestia’s cock shifted in Twilights tight pussy, walking back inside, each step causing a small thrust into the smaller alicorn. Celestia walked into her private rooms and Twilight trembled, almost feeling like she was sloshing from all the cum in her.

Sitting down, Celestia used her magic to slowly pull Twilight off her cock. Twilight trembled and then just kind of collapsed in the magic field, panting for breath as she felt a small flood of sticky liquid flow down her thighs.

Feeling herself being set down on the bed and then the bed rocked as Celestia jumped up to lay down next to her, slipping a wing around the alicorn, pulling her close into a cuddle.

Twilight just relaxed against the warm side of her teacher and mentor with a small soft sigh.

“You did so good today, Slutlight,” Celestia told her, giving Twilights ears a small nuzzle, “I know it’s not easy to handle my cock. The time before the spell was frustrating.”

“C-could see that,” Twilight answered and nuzzled back, “A-almost too much as is.”

Celestia nodded and gave Twilight a kiss on the forehead, “You handle it better than most ponies. Most are unable to last more than an hour or so before they can’t talk. You know, if you were a bit smaller and easier to handle I might even ask if you wanted a permanent position,” she teased.

Twilight didn’t know she could blush at the moment until then. But blush she did.

Leaning in to give Twilight a small kiss on the nose, she continued, “And I must say your regalia look good on you. You should wear them more.”

“C-can’t exactly chose what I wear now…”

“True. But after you return home.”

Twilight nodded a bit and then relaxed against the larger alicorn, “Mmm… time?”

“We still have an hour or so before you have to leave, my little cocksleeve,” Celestia said and nuzzled her ear, “Why don’t you just relax for a bit? You have more than earned it.”