Spike wrung his hands, waiting outside Twilight's bedroom in the friendship castle. He'd had this fantasy for so long...seeing Twilight beginning to grow into her alicorn proportions had only made it harder to resist asking. Finally, after waking from the dream for what felt like a million times in a row, he stood in front of that door, screwing up his courage. He wanted this...so badly.
So deep in thought, he didn't hear the door opening, and it slammed into his scaly muzzle. "Gah!" he clutched it, Twilight immediately fussing over him, guilty and apologizing. He waved it away, managing a smile. "It's fine, Twilight, Really."
He took a deep breath, "But I do...have something I want to ask of you. It's...big, but I promise I've thought this through." he assured her. She tilted her head, but sat down so they were eye to eye.
"Alright, Spike, if it's that important, then I'll hear you out," she smiled, nuzzling his cheek softly. He fidgeted, wringing his claws. This was...harder than he thought, despite his desperation. He looked up at her, understanding but worry in her eyes.
"I...have thought about this for the longest time, and I'm very sure of it. It...sounds extreme. And it is-but I know I want this. Twilight...I want...I want you to become as big as Celestia, and shrink me so I'm...like, baby sized, again...and then? Then, I want you to sit on my face. It'll probably kill me...and that, that is my absolute sexual fantasy. Please, Twilight..." he begged, looking into her eyes once again.
Twilight was blank faced, before laughing. "O-oh! I'm so sorry, Spike, that's not at you...I'm just so relieved! I...I've often thought about the same, not just with you, but all our friends. Their last moments together with me...it feels...so intense when I think about it, to be the last thing seen or felt for them..." she shuddered, flicking her tail. "I will absolutely do this for you, and I'll feel just as excited to do it!"
The pair embraced, nuzzling affectionately, before Twilight moved back. She lifted her head high, lighting her horn with a spell. It covered her own body with a skintight aura before soaking into her body. Spike watched, as very slowly, she began to grow. Her legs lengthened, as did her neck. The shape of her muzzle changed, also elongating. Her horn became as long and regal as Celestia's, jutting from her forehead proudly. Her hair became wavy and ethereal, like the sister princesses were. She stretched, her wings opening and flaring, now larger as her body was. Spike licked his scaly lips, his own wings erect in parody of a wing boner.
She smiled down at him, "It's time, Spike..." he shook in anticipation, the glee on his face obvious. Her horn lit up once more, the spell now covering him. He looked up at her as she shrunk him, his hemepenes sliding out of his reptilian slit. They trembled in arousal as he did. He savored each and every inch he lost as his body shrunk, going from being at roughly her chest height, to seeing under her barrel, to her knees. A few inches under that, and it stopped. He was very small once again.
Twilight turned her plot to him, tail flagged off to the side, pussy drooling down her much longer legs, all the way to the floor. He looked up at it, admiring her larger pussy. He sat down, turning his back to her, before laying on his back, licking his lips at the delicious, mammoth plot above him. Twilight looked down to get a better view, and aligned herself, her haunches coming down slowly above his face.
Soon, the pussy trickled it's juice down onto his face, and he slurped it up. His last meal of a sort, sweeter than any gem, thicker than any nectar, absolutely perfection on his tongue. "Any last words, my faithful assistant?" Twilight teased. She slowly waggled her plot from side to side. He watched it, thinking on it.
"Yeah-I love you, Twilight, and I love that you'll do this for me. Sit on me, Twilight, end my life by your godly plot," he teased back. She laughed, and sat slowly on his face. Not completely, at first, savoring it, letting him breath-just. She moaned, twitching her hips, and he extended his tongue deep into her cunt. She moved her hips up and down, barely letting in a single gasp of air each time.
His head spun, from lack of air and arousal. He loved her for dragging it out, adding to the fantasy, his suffocating brain allowing him to feel a higher level of ecstasy. Each thrust of her hips dragged his snout through her pussy lips, separating her labia and allowing him to rub her clit with his nose. It was as enlarged as the rest of her, thick and erect. He opened his maw, allowing her to grind her clit right on his tongue.
His own claws stroked at his cocks, smearing precum over them from tip to base. Twilight moaned, shivering, putting more pressure slowly on his face until he could no longer breathe. His chest heaved, body rocked by spasms as the last of his air began to dry up. His claws went from his cocks to her cutie marks, or at least the very bottom, clinging to her. His nose bled, adding to the lubrication flowing over his face. It became harder to lick up into her, the pressure making it near impossible to move his jaw. If he did, he also risked biting his tongue through, and he did not want that-he wanted to make this last as long as he could.
She rotated her ass in enthusiasm now, letting herself go, but never letting up enough for breathing. She practically bounced on his giving skull. Even as he suffocated, her ass began to crush his head and chest. His cheek let go with a crack, and a spurt of precum from his cocks. Twilight moaned at the sound, invigorated further, heavy haunches smashing down on the tiny head harder. A duel crack, an eye socket and his own muzzle shattering. Another slam, and some of his brains spurted out of his nose and dislodged the eye with the broken socket. He gave a spasm, his last action to cum, hard, striking her right in the plot hole with his twin bursts-an impressive deathgasm, especially given his current size.
His body shook under her, the destroyed brain still firing off randomly. His jaw dislocated, his teeth far too tiny to cause any discomfort to the massive alicorn. A bounce ripped it free from his face, the upward motion of the next one allowing it to splash into the puddle around his literally fucked head.
Twilight squealed at the feeling of his deathgasm and hot spunk, and slammed her ass down hard enough to shatter his skull, his brains spurting out against her pussy as she flattened his head. The moist feeling, the knowledge of his death-caused by her!-sent her over the edge harder than Celestia did when sitting in cake. Her femme cum drenched his remains, his last spams lost in her enthusiastic face fucking. She rotated her hips, some of his bone and brain matter sliding up into her, heightening her ecstasy. It seemed to touch all the right places, her eyes crossing as she panted. She sat down firmly, her plot twisting side to side to really enjoy the feeling of gore against her booty.
She gave a final shiver, and stood on shaky, weak legs. The very last dregs of her orgasm soaked them right to the hoof. If she stood too long in one place, no doubt she'd leave a puddle of her satisfaction and Spike's own, nastier fluids. She stumbled forward, turning to admire her handiwork.
His head was pulverized, soaking in her cunt juices, near marinating in them. Blood and pussy juice made a massive puddle for him to rest in. She admired the lovely corpse for a while longer, before dispelling the magic on herself. Spikes, she left intact. She feared it wouldn't have the same impact if it was removed. She walked around him slowly, smiling, savoring the love and last moments they'd had together. How wonderful. Going above and beyond mere friendship. She put a hoof between her hind legs, rubbing out another one. "Oh Spike...forever my number one assistant, even to his own death."
