“So what did you want to talk about, Twilight?” Cadance asked, stirring a healthy dose of cream into her morning coffee.

“Well, I’m happy you asked,” Twilight said, setting down her cup of coffee in turn. She cleared her throat with a wide smile. “Well, you know how we have this whole…. Curse of immortality that has completely skewed our sense of interpersonal relationships since time takes a toll on the world around us but we stay the same.”

“Of course!” Cadance said a touch too quickly, sipping her coffee.

“And how you gifted the same gift of life to Shining, and by extension Flurry Heart.”

“Naturally.”

“Well, I’d like to have sex with my brother as a birthday present.”

Cadance than spat an entire cup of coffee onto Princess Twilight, who seemed relieved that this seemed to be the most radical part of the reaction to her inquiry.

“YOU WANT TO--”

“Cadance, we’re in a public chamber.”

“THERE’S ONLY GUARDS HERE.”

“Yes, but I boned them and I don’t want them to feel jealous.”

Cadance blinked. Twilight collected the coffee out of her coat and mane with her magic and wrung it into Cadance’s cup. Cadance pushed the cup away from her shyly.

“You want to have sex with my husband?” Cadance said.

“Yes,” Twilight said. “Like with his penis.”

Cadance sighed and scratched her head.

“You seem… concerned,” Twilight said, slightly tilting her head. “Of all the stories you told me of the kinky things you and Shining do, what makes this one so weird?”

Cadance shook her head and moved her hooved to her eyes.

“Well. I--” She says, her voice trailing off.

“Is it the incest?”

“Surprisingly no?” Cadance replied.

“That is surprising.”

“RIGHT?” Cadance said. “It’s more… well.” She paused for another moment. “We’ve never… shared ourselves with other partners before?”

Twilight blinked at Cadance.

“Never?”

She shook her head once more.

“Like,” Twilight continued. “You did all of those fetishes and stuff, but never once brought another pony in?”

“Contrary to what everypony else thinks, no. And to be honest. In my own way. I’m sort of comfortable with this? Because, like, it’s not a random pony?”

Twilight nods.

“Do you think he would be into it?” Twilight asked.

“Oh that’s not even a remote concern. You’re a favorite for him on Roleplay Thursdays.”

“What?”

“What?”

A silence fills the air.

“Well,” Cadance continues, “I suppose all that’s left is to talk to him. And get mutual consent from all sides.”

Twilight bit her bottom lip.

“Well, actually-”

“So, I’m going to lay here on this bed,” Shining said. “And somemare is going to come in and have sex with me.”

“Yes,” Cadance said.

“And you’re okay with it.”

“Yes.”

“Who is this mare again?” Shining said slipping the blindfold off of his eyes. “I feel like this is a trap. Or a really weird way for us to do blindfolds over again.”

“That’s part of the surprise,” Cadance said. “But I swear. If there is any mare that you can think of that you would not be comfortable for this with, name them, and we will stop this right here.”

Shining blinks, looks to the ceiling, then back to his wife.

“If they’re over 60, I’m out.”

“Okay, so, they don’t look sixty?” Cadance says uneasily.

“That’s what people say to say they’re sixty.”

Cadance placed a hoof to her face.

“You won’t have to worry about their looks.”

Shining blinked. He then just laid back down on the bed and slid the blindfold over his eyes.

“If I get dentureless head, it better be the best head I’ve gotten in my life.”

“Okay. Well. Here we go.”

Cadance walked to the bedroom door, then opened it slowly. Twilight stood on the other side, her face red.

“Is everything okay?” Twilight asked.

Cadance nodded then stepped out.

“Are you okay with this?” Twilight asked.

“Yeah, I already said I was. Are you?”

Twilight nodded, then placed a hoof on the door.

“Oh!” Cadance said. ”You should know he’s really… uh… potent?”

Twilight looked to Cadance in confusion.

“You should use protection if you don’t want to be… well. The prego.”

Twilight nodded, then stepped inside the bedroom, then locked the door behind her.

She saw her brother lying on the bed, moonlight glinted off of his chest from the moon streaming through the bedside window. Her eyes moved down to where his back legs met his torso. A warmth filled her body. She nervously bit her bottom lip as she moved across the room.

Twilight laid on the bed and placed a hoof on her brother’s chest.

“Well, no wrinkles,” Shining said.

“What?” Twilight said.

“What?” Shining replied. “Wait. I know that-”

Twilight placed a hoof on his lips then pulled her body up over his. She replaced her hoof with her lips and placed a gentle, caring press against his lips. When she broke away, the two of them exchanged a gasp.

She could feel her juices drip out of her body and onto her brother. She reached a hoof down to his stallionhood and caressed it’s length, coaxing it’s girth from its sheath. Her lips moved from his lips, to his neck, to his chest. He let out gentle gasps of breath as she moved her hoof over his most sensitive spots.

She couldn’t take it anymore.

She needed him.

She positioned herself over her brother, then pushed herself against him. But she stopped. Something deep inside her stopped her. Some primal call within her demanded something.

The blindfold needs to go.

With the purple glow of her horn lighting the room, she raised the blindfold.

A moment of silence filled the room as Shining looked over Twilight’s form, her wings expanded, her drenched marehood teasing the tip of his cock.

“Is this okay?” Twilight asked.

Shining’s mouth opened slightly. Twilight looked away, feeling the lustful gaze of her brother examine her body in a way she never knew how badly she wanted.

“You’re so beautiful,” he said.

Twilight slammed herself onto Shining’s rod, and let out a loud moan that echoed through the room. Shining groaned as Twilight took the full length of him inside her tight, wanting sex.

“Oh Celestia, I’ve wanted this for so long,” Twilight moaned. “I dreamed about you coming on me while I sleeped ever since I was a filly.”

“Yeah,” Shining said, “Those definitely weren’t dreams.”

“What?”

“What?”

A moment of silence.

“So..” Twilight said. “Are you ready?”

“Yeah,” Shining said softly.

Twilight raised herself slowly using her back hooves, then slammed herself down. Once. Twice.

“Uh-oh,” Shining moaned.

“Uh-oh?” Twilight asked.

It was then that she felt it. Shining’s body pulsed hard, and she felt fluids gush deep into her body. Twilight gasped, feeling herself grow fuller and fuller of her brother’s baby batter. She closed her eyes, relishing the unique, lewd sensation.

“I’m sorry,” Shining said. “This is why we stopped doing roleplay thursdays.”

“Don’t worry,” Twilight said with a smile, placing a hoof on her upper groin. “This was the birthday present I wanted.”

Twilight smiled as she looked at her brother. He looked back at her blankly.

“Oh shit is today your birthday?”

The news was all over the hospital.

“Who is Twilight’s secret stallion?” was the question on everypony’s lips. But, low and behold. The hard part was over. Nine months later, and Twilight laid in bed, heavily dosed on drugs. Foalbirth is a bitch, cut her some slack, why don’t ya.

And now, family visitation was open.

Twilight laid in bed, holding three little foals in her hands. Each of them alicorns. Each a spitting image of the parents, or the parent’s parents. We’d call them grandparents, where I come from.

The door opens, Shining, Cadance, and Teen Flurry walked in, each smiling and gazing on Twilight’s little bundles of joy.

“Hey Twilight,” Cadance said. “How are you holding up?”

“Well, the only thing I can feel is my forehooves. So, the medicine works!”

The three laughs.

“Uhm, could I get a moment alone, with Shining though, please?” Twilight asked.

Flurry and Cadance nodded at each other and Flurry exited the room.

“Don’t do anything I wouldn’t do,” Cadance said with a song in her voice.

“That’s like. Nothing,” Shining said.

“Well don’t do drugs,” Cadance said, before closing the door on the way out.

“I don’t know how to tell her this,” Twilight said to Shining. “But I think she’s late.”

Shining nodded then sat down on the bed beside Twilight.

“You know I’m going to do my best to… well. Help.”

“I know,” Twilight said. “But I also understand. It’s gotta be secret.”

Shining sighed. Looking down to the littlest one, whose coat and mane resembled their grandmother, despite being a colt.

“I love you, you know,” Shining said. “I-”

“I know, Shining.” Twilight said.

“No,” Shining continued. “Not like that. Not like family. But. I just. If I didn-”

With a magical glow, Twilight pushed an orb of energy gently against Shining’s lips.

“I feel the same way,” she said softly.

She looked from her brother, down to her children lovingly. Shining looked down into their resting forms as well.

“Hey there guys,” Shining said softly. “I’m going to be your absolute favorite uncle.”