Birthday Celebration

by SaltyOutput

Rating: mature
Tags: Princess Celestia, Slice of Life, Princess Luna, Porn, My Little Pony: Friendship is Magic, Fetish, Romance, Sex
Length: 3021

Luna helps Celestia forget about her own little tragedy.

Luna and Celestia receive good news. Cadence finally birthed her child! Shining Armor is finally a father!
For Celestia, this brings up an old wound. Luna knows this, and intends to make her forget about it.

Created for the April 2019 Sibling Incest contest.
All critique is considered solicited.

Published 2019-04-07 12:20:01 UTC
Last updated 2019-04-07 12:20:01 UTC

I'll Make You Forget All About it, Sister

Luna's breath hitched as she saw the magic dust whisk through the air. The light bent and swirled until it burst, dropping a heavy, gilded letter.

She caught it with her magic, bringing it over to her desk, where she carefully unwrapped the two ribbons holding it shut and broke the wax seal. The thing nearly unraveled right there, it was so tight. She peeled back the winding and several photographs dropped, along with a slip of paper that may have been a drawing.

Cadence must have recovered swiftly. She thought. Many mares would still be exhausted after an extended pregnancy like hers. I wonder what the little one looks like?

She ignored the letter in favor of the pictures, for now. She picked up the first, and immediately giggled. Prince Armor was quiet obviously, desperately trying to conceal the pain as his wife was crushing his hoof. She dropped it to the side of the desk. The next one was more heartwarming. The three were laying in bed, the child and Cadence were asleep, and Armor, holding them both tight. The scene elicited a heartwarming sensation.

She went through each picture as she did the last, with careful eyes and a warm smile. None of them disappointed. Her niece and nephew were quite happy at their success. A healthy child was always something to cheer and celebrate, of course.

Luna felt a dint of sorrow, though. Not for herself, of course. She never found herself to be the kind to want familial matters such as those. Her sister, however, has indeed engaged in such discourse. After several attempts with a secret lover, Celestia had gone to a doctor and... well, some things were best left unsaid.

Luna was sure how she'll react to the news.

If Cadence has not yet sent this to Celestia, it may be best to be at her side when she receives it. It she has, well, late is better than never.

Luna neatly aligned the pictures at the side of the desk, placing a small weight on top. She picked up the scroll and pitched it for the best of the morning light. The writing was clean and carefully crafted, with little hearts dotting the I's and floating in the margin. Cadence had clearly put a lot of love into the letter.

'Dear Aunt Lulu,

The happy day has finally come! Shiny and I finally have our little bundle of joy! We're still not sure what to name her, but the crystalling is still a ways away, so we're confident we'll have a good name before then. Also, she's so pretty! Her eyes are already huge! There's a bit of a secret we've been keeping about her, but I wanted to show it in person. Now that she's here, I need to arrange-'

She went straight through the letter, picking up every little detail she could, until she got to the end.

'-I'm sending both of you copies of the pictures, and you each get one of her hoof-prints.

With lots of love,

Cadence

P.S.

Don't tell Twilight. I want to tell her myself.'

Oh dear. Luna thought. She was sure Celestia had never mentioned her own predicament to Cadence. Even if she did, none could have blamed her for being happy, but Luna felt a sudden need to go soothe her sister.

She donned her regalia, previously set aside for her slumber, and cracked open her chamber doors. She strode on between the two guards, caressing their sides with her wings, before moving down the leviathan halls.

She ducked left and right, weaving through the distance until she came to another door, not too unlike her own, but covered with a solar image. The two guards gave her a glance before staring on again, careful not to break rank. She gave them each a willful look.

“Return at an hour hence. We have private matters to attend to.”

The two wordlessly dismissed themselves, carrying on through the hall.

Luna took a deep breath. She pulled on the doors open, then sealed them again as she entered. The noise of her hooves on the stone carried on and back. There was no greeting. No 'hello sister'. No 'good morning'. Celestia was standing at the edge of the balcony, facing the morning light. In her grasp were the numerous pictures.

Luna lit up her horn, and a little light crawled along the cracks of the door. After that, a second spell covered the whole of the entrance. When her magic silenced again, she approached slowly, coming up to Celestia's side in the least disturbing fashion.

Celestia hardly gave Luna a glance, but it wasn't out of ignorance. They focused on a little piece of paper; on it, a tiny hoof-print of ink, no larger than a newborn foal's. Luna gently unraveled her wing, then traced the tip up her sister's back, until it wrapped around her withers.

“It's been a while since I thought about it.” She said. Her voice betrayed nothing, but Luna knew how she felt. “I wonder what it's like? She bounced back so quickly.”

“She's rather resilient, sister. She wouldn't let a child subdue her.”

Celestia idled a moment, and Luna tugged at the pictures with her own magic. “No. No child could subdue me, either, I suppose.”

Luna raised her head and brought her lips to Celestia's, giving a long, warm kiss. Luna drew out their embrace, long since having learned how to convince her sister's body to submit; her weakened state allowed for it easily. The two broke, and their eyes met.

“Thank you, Luna. I needed that.”

Celestia filed the pictures away, but each gentle kiss along her neck made it difficult to concentrate, and a few corners became bent. She leaned down a kissed her sister below the horn.

“You're so distracting, you know that?”

“I'm glad to be of service.” Luna responded. She slipped her wing back and stepped under her sister, pressing up against her chest. The two stayed close for a moment, nearly sharing breath as they enjoyed the warmth and silence. They looked softly into each-other's eyes, letting everything melt away for a moment. It ended when Celestia leaned down, pressing their lips together again. She broke, then stepped toward the door. “I hope you're not leaving yet.”

“I should get the day started, shouldn't I?” Her voice said one thing, but the way she stopped told Luna what she needed to know.

“You could use more distracting.” She reached over and locked legs with her sister, bringing their bodies close again.

Celestia didn't fight it.

“Would you like me to fetch us that virile stallion from the running team? I'm sure he wouldn't mind-”

“No.” She cut off. “I'm not in the mood for him.”

Luna smiled. “Very well.” She walked alongside her sister, taking off her own regalia, meticulously placing each piece right at the foot of the bed. Celestia took off her own crown and shoes, but stared at her own chest-piece. Luna grasped it with her magic, carefully sliding it off, revealing the barren white chest below.

Celestia took a deep breath, stretching out the full range of her lungs. “That one is always the hardest to take off.”

She caressed her sister's exposed chest, eliciting petty giggles. “Good thing you have a loving sister to help, then.”

“It's a good thing I do.” She meandered over to the edge of the bed.

Luna, however, hopped through the air and bounced around before settling. “Come on, then. No need for curtsy.” Celestia shrugged and jumped high into the air. Luna only realized her mistake after the impact launched her. “No need for murder, either!”

“Oh, did little Lulu's heart jump? Will a kiss make it all better?” She leaned down and began planting kisses along Luna's neck.

Luna relaxed, letting her sister put those warm, wet lips up and down her body, from chin to breast. She basked in the sensual contact, each time just a little more eager to receive the next. “You're more eager than last time.” She remarked.

“I haven't... since last we-”

Luna silenced her with her own kiss, taking back control. “It shows.” She said. “And don't think I so quickly forgot who this is about.” She gently pushed her sister aside, letting the white giant fall onto her back. Luna stepped over and laid her chest to Celestia's.

They crossed horns, gently holding them together. Luna's mild hue of magic flowed out, mingling with Celestia's as she did the same. She teased her lips with kisses too quick to reciprocate, and their magic ebbed at each-other, flowing back and forth in a slow battle of will and pleasure. After moments of teasing, Luna pushed back Celestia, gripping the magic right at her horn, swirling, vying for control.

“Oh, Luna.” Celestia closed her eyes, holding down on Luna's hooves. Every flick of magic that forced itself down her own source wrought pleasure. The intimacy of another's magic writhing within her own made her feel weak; vulnerable. If she allowed it to go on, her mind would rent. She'd become a puddle; a pile of clay. She'd be a plaything to her sister's desires, both wholesome and wretched. A part of her wanted it. A part of her sought it actively, but another part pulled back. She pushed Luna back and broke it off. “Let's take it a bit slower.”

Luna conceded, cutting out her magic. She gave a quick lick to Celestia's horn while it was still sensitive, then moved back. “Very well.” She hopped up and landed with her head over her sister's barrel. She placed her lips just over the fur, and blew as she moved over the body. It got a smile out of her sister.

She lowered her head and caressed her sister, dragging down to the supple teats on display between her legs. She teased the erect nipples with just the lightest touch from her lips, gracing this way and that. She gave one a lick, then the other, then back and forth. Celestia flinched each time the coarse tongue passed over the sensitive points. She did nothing to hide the blush running across her face.

Luna took one teat into her lips, playfully tugging and releasing again and again. She swirled her tongue around, leaving plenty of spit as she did.

“Oh, that's the spot.” Celestia arched her back as Luna worked, stretching her long legs far and wide, giving all the room she can. She closed her eyes, focusing on every lick of pleasure as it came. “Those lips of yours are heavenly, Luna.”

Luna continued on for some time. She enjoyed every little moan and gasp coming from her sister. Every touch was another bolt of bliss for Celestia, but the pleasure was all Luna's. She relished in how her sister needed her. She felt needed; wanted; appreciated. She stole a glance to her sister's nether region. The winking let her know she was nearly ready. She ceased her suckling and gave her sister's sex a firm lick, making her flinch. “I think we're at that point, sister.”

She focused her magic down and reached below the bed for a lock-box the size of a briefcase. She stood her chest high and looked confidently -imposing, really- toward Celestia. She freed the latches and placed the box on the corner of the bed, never breaking eye contact. With her magic, she felt around for what she knew to be her sister's favorite-

“I'd rather not.” Celestia's words froze Luna in her tracks. Sensing the confusion, she continued. “For me, I mean. If you want to enjoy them-”

“This time is for you, sister.”

She giggled. “Takes two to tango, Luna; and you ought to know by now it's give and take.” She leaned over and hugged her sister, then pulled her up onto the bed. She brought their heads close, nuzzling her little sister, and gave a warm, hearty giggle. “I think it's time I start giving back. Which would you like?”

“Nothing special, this time.” She spread herself out, arching her back and thrusting her rump high in the air. She nibbled on Celestia's neck as her sister took over.

Celestia took one toy and discarded the box on the floor. She pulled Luna into a deep kiss; long, warm, and sensual. The tips of their tongues touched playfully; neither really pressing far at the other, but danced to and fro like two snakes courting each-other in slow movements. She held Luna's chest close, rubbing fur and fur in their passionate dual. She cracked an eye to orientate the toy, then lined it up with Luna, gently pressing the tip of the long fake cock against her sex.

She pressed, then recessed. Pushed in, pulled back. She continued, each small attempt teasing her little sister a little more. She used her magic to caress Luna's opening, then pull it apart as she slipped the tip in. Luna only moaned in response. She continued to press down, inch by inch, stretching each second out as she did. She could feel Luna pause her breath as it slid in.

She let the full length remain in as they continued their kissing. She let her sister enjoy that full sensation in her loins; filling that physical void with the toy, and that emotional void with the wonderful sister in front of her. Luna grabbed her hooves, fully committing to whatever Celestia does to her.

With her magic, Celestia pulled the toy out again, slowly, then pushed back in. She started off in deep, careful thrusts; each time, out to the tip, then all the way forward again. As she did, she touched along the most sensitive parts of Luna's depths, making her want to squirm and writhe, even at this slow pace.

“Harder.” Luna said, breaking the kiss. A one word command, and Celestia took it to heart. She pulled out the toy and thrust it back in over and over, each time sending slow vibrations through her flesh. Pound after pound she quickened the pace. Luna couldn't hold the kiss anymore and pressed her face again her sister's chest. She stretched and held fast, focusing on the pleasure from every movement in her body. She lost herself in the warmth; in that age old rhythm. Some part of her was aching to be seeded, to turn two into one, but her growing concern was finding that final moment of bliss she knew was coming.

She pushed back, trying to milk every ounce of enjoyment out of her position. Her loins were on fire now, burning with a sensation of terrible ecstasy. She bit down on her sister, desperate for something to brace her for the coming moment. It came far sooner than she was anticipating. Her voice died in her throat, and she gave a pitiful wheeze as the bliss washed over her coat and took over her mind. Her body continued to thrust, aching for every bit of love offered. It must have lasted forever, but only a moment after her body shook and calmed down again, Celestia pulled the toy out, putting it aside.

She looked down at her little sister rubbing the bite mark. “Seems like you enjoyed yourself quite a bit.”

Luna looked at her apologetically. “Sorry, sister.”

“Don't be.” She nuzzled her. “It just means I'm doing it right, is all.”

“Quite right.” On wobbly legs, Luna stands up, backing herself off the bed, and places her face where it once was, smiling from between her sister's teats. “Are you sure you want Au Naturale?”

“With you, Luna, I don't need it any other way.”

Luna gave a lick, teasing the opening. She slid her tongue around the edge, feeling along the entrance before she went deeper.

Celestia could feel the warm flesh tenderly work along her walls. She rested her body and let her sister take over, and she performed diligently. Passing this way and that, her tongue touched and poked and prodded each of those little spots that just brought on the most tantalizing shocks of pleasure. The spots that weren't as sensitive gave her the subtle good feeling that one could expect from a massage made too enjoyable.

Luna flared her magic and she picked and played with her sister's teats again. The numerous signals begging for release then raged against her. Every little twist and touch poured on her mind and didn't let up.

She focused on every passing touch, putting away any inhibition that might have come to mind. She counted the seconds as they ticked by, turning to minutes. Her sister kept up the pace, her facing seemingly never tiring from the repeated movements. She could feel herself getting close. It wasn't such a perfect buildup as she might have at one time enjoyed, but it still filled her with a sense of nearing completion. She didn't speak aloud, but instead let Luna continue on through the orgasm, licking away at her spastic, quivering pussy, before it returned to a more normal state.

Luna went on. She slowed herself as she looked at her sister, making contact with soft eyes. Slow turned to slower, as each movement became more articulate; more refined. A moment passed they hardly touched each-other at all. Celestia didn't need to say anything as Luna pulled her head away, wiping off the lubricant across her face. She jumped onto the bed and laid next to her sister, resting her head just under Celestia's.

Celestia gave a kiss on Luna's forehead while wrapping her hooves around her barrel. “Thanks for giving me a distraction, Luna.”

Luna cranked her head and kissed her sister on the lips, slowly. “Of course! Anything to help a sister in need. And don't hesitate to ask if you should find yourself needing more.”

She nuzzled her little sister, closing her eyes and embracing her in the warm afterglow. “I will. I promise.” She paused. “And Luna?”

“Yes sister?”

“I love you.”