Late at night, in the Crystal Empire, Shining Armor was fast asleep alone in his king-sized bed for some reason. Unbeknownst to him, he wasn’t actually alone. For standing above him was Twilight Sparkle, looking at him with bedroom eyes. Her hair was badly disheveled and her eyes were twitching frequently.
“Wake up! Big Brother!” she shouted.
Shining yelped, opening his eyes to see his sister staring at him with wild eyes.
“Uhh, Twi… are you okay?”
“Of course I’m okay, I got my handsome, big brother.” she said sexfully, gently stroking his cheek with a hoof.
“I’m not sure I follow.”
Twilight turned around and presented her fat rump to her brother, swishing her tail from side to side.
“Give it to me, my big brother.” she said sexfully.
“But… but… you are my sister. I can’t do that.” Despite his words, he still found himself getting hard at the sight of his sister’s pussy.
“Of course you can! We are meant to be together!” she shouted.
“This is insane. I’m married Twilight!”
“You can marry me too and give me your foals!”
“You want retarded babies?”
“I can fix the retardedness with magic! Now, hurry up and give me the D already.”
Shining flashed his horn, teleporting himself across the room. He made to open his bedroom door, but was stopped when Twilight dived on top of him and knocked him over.
“Where do you think your going big brother?”
“Twilight, please. Snap out--- hmmm!”
As he spoke Twilight dropped her head down and kissed him, driving her tongue into his mouth and gently wrapped her hooves around his neck.
Shining moaned not just from the wonderful feeling of being kiss, but also the fact that his long, thick fully erect cock was sandwiched between his sister’s soft buns.
‘Give in. Fuck your sweet sister’s ass.” came a strange, deep voice in his mind.
Shining ignored the voice and pushed Twilight off him, causing her to roll to the side of him.
“Why brother?!” she cried.
Shining jumped to his hooves and proceeded to open the bedroom door to try to escape only to meet a solid wall.
With dread, he turned around to see Twilight looking at him with lustful eyes.
“It seems clear you are too big and strong for me, big brother. Let’s change that, shall we.” she said in a mocking tone.
Twilight’s horn glowed with magic. As her horn glowed, she started to inch upward, higher and higher into the air with each passing second.
Shining trotted to the nearest window only to see it too was blocked by a solid wall.
He flashed his horn, only for it to spark.
“There is no escape.” she said in an evil tone.
Shining turned to face Twilight to see her already about the same size as Princess Celestia, and still growing.
“Cadence! Help me!” he screamed.
“She won’t come. You are all alone with me, your big sister.”
Shining looked on in horror as his sister grew bigger and bigger by the second. As she grew there was less and less space in the room. She about the size of an elephant right about now.
Shining backed away to the bedroom door.
Soon, the soft flesh of Twilight flanks began to be compressed against the walls of the bedroom. It was at that moment, his bedroom vanished and he found himself standing in an empty, white void of nothing.
“Okay, my little brother. I’m going to start some real growing here.” she said, turning around to show him her huge ass, which cast a dark shadow over him.
“But Twilight, big giant mares aren’t my fetish!” he protested.
“Ummm, We think they are.” came a rich cultured voice.
“Luna? Is that you?”
Twilight vanished with a puff of smoke and was replaced with a normal-sized Princess Luna. Well, she was still bigger than him, but not to the point of insanity.
“Shining, please don’t do this strange fetish of thy outside the dream world.”
“But it’s not my fetish!.” he protested.
“Shining, don’t worry. I’m not here to judge thy fetish.”
“It’s not my fetish. Incest is wrong and sick.”
“What? Our love for our sister is not wrong and sick!” she shouted, crossing her hooves.
“... you are in an incestuous relationship with your own sister?”
“Of course We are. Our sister is immortal like We. Plus our sister’s backside is the finest backside in all of ponykind.”
This Luna vanished with a puff of smoke to be replaced with another Luna.
“Shining, please disregard what We just said there. That was your mind putting words in my mouth that simply isn’t true.”
“Wait, so you aren’t in an incestuous relationship with your own sister?”
“No.” she simply said.
“Aww!” he said sadly.
Suddenly his eyes widen in panic. “Please don’t tell anypony about these dreams I am having.”
“Don’t worry. We are a Guardian of Dreams, not a gossip whorse. Just promise Us thou won’t actually try have sex with Twilight in the waking world.”
“I won’t. I love Twilight, I would never do anything to hurt her.”
“Good. Does thou wish us to leave so that thee can dream about incest in peace?”
He simply nodded. With that Luna faded out of sight. A small, normal-sized Twilight appeared in view before him. Her hair was normal, but she was looking at him with worry, not lustful eyes.
“Brother, this was the first time you rejected me.”
“Twilight… you are not the real Twilight. You are nothing but a dream.”
Twilight dropped down onto the floor and begun to cry. Shining’s heart ached at the sight of this and he rushed forward to hug her.
“Twilight, I’m sorry.” he said in a soft voice.
“You don’t love me! I’m nothing to you, I’m just a fake version of your real sister!” she cried.
“Wait, are you actually a person?”
“Of course I am. I’m a dream pony.”
“A dream pony? Is this real?”
“Why wouldn’t it be real. Just because it’s a dream doesn’t mean it’s not real. The dream world is a world too.”
“Okay, but why did you try to rape me?”
“Because that what you subconsciously ordered me to do. Us dream ponies have very limited free will, we are bound to your wishes.”
“Oh, whoa. I got some real freaky fetishes.”
“Yes, you do. You sick bastard.”
END
