Caring for the Young One

by Mackstack

IV: Desperate Times & Desperate Measures

Previous Chapter

IV: Desperate Times & Desperate Measures

Sweetie Belle sat on the edge of her bed, her arms crossed over her chest. She shook her head defiantly as her sister approached, wielding the vibrating plug like a weapon. The hunk of silicone looked unwieldy and terrifying, and that was before Rarity had even hit the power switch on its underside.

Rarity stopped her approach, her head sinking in resignation. “Look, Sweetie, I know how uncomfortable you feel about this, but it’s what the Doctor recommended. And we have to listen to our doctors, don’t we dear?” In response Sweetie dramatically threw her head to one side, holding it high in defiance. “I’m not budging Rarity! I don’t want that thing anywhere near my behind! Things come out of there, they aren’t supposed to go back in!”

Rarity couldn’t help but smile at her sister’s naivety. Oh, how little she knew about the world. She sat down by her sister’s side, resting a reassuring hoof on her knee. “Come along, Sweetie dearest, you’re worrying over nothing. I know it seems wrong, but you’ll get used to it after not too long, won’t you? And then it’ll become just another part of our nightly routine, yeah? Clean our teeth, get into bed, pop in the butt plug, go to sleep!” Rarity moved around, so she was staring her sister in the face. She smiled calmly, never breaking eye contact with the concerned filly. “If you won’t do it for the doctor, will you please do it for your sister? Hey, if you do, I’ll take you to Manehattan this weekend! And then the next, and then the next! In fact, if you promise to try this plug until the doc recommends you stop, I’ll take you to the city with me every week! What do you say?”

She stared nervously as she waited for an answer. If Sweetie didn’t agree on these terms Rarity was in real trouble. The Manehattan trips were her trump card. Sweetie slowly uncrossed her arms as she thought, before coming to rest by her side on the bed. “Okay sis, I’ll do it. For you. But you'll have to put it in for me. I’m not really comfortable with it.”

Rarity didn’t have any choice. If she didn’t do it, Sweetie sure as heck wouldn’t. And so, reluctantly, Rarity pushed her sister’s legs apart and moved towards her rear. Telepathically holding the plug by her side, she hovered forwards, until it rested teasingly against Sweetie’s plump butthole. It was at that moment Rarity hurriedly withdrew it again. Looking around, she realized she had nothing to use for lubricant. She couldn’t just force it in dry, she didn’t want to hurt her poor sister in a period of such difficulty.

So the only option was to wrap her tongue around its tip. She slathered it with lubricating spittle as she dragged her tongue across the entirety of its flared body. She watched as her sister bit her lip and shuffled left and right, her cock slowly making itself visible from her sheath. It turned her on knowing her little sister was enjoying the show, getting all hot and bothered as she watched her older sister sucking on the butt plug that was about to be forced inside her.

Having decided the ‘medical apparatus’ was now appropriately lubricated, she started to push it against her sister’s back passage once more. Slowly but surely she pushed it into her body, watching her sister’s expression of euphoria as it crept inside, inch by inch. She made sure to move slowly as she could only imagine how difficult the ever-expanding flare must be to take. Finally Sweetie let out a guttural moan as they plug jolted forwards, the filly’s gaping anus drawing shut, swallowing it into her body. Rarity leant over and slowly pushed her sister down onto her side.

“Now Sweetie, I want you to close your eyes and go to sleep. Why don’t you try counting dresses for me? Rest well, my sweet.”

As the little filly closed her eyes, Rarity watched as her cock slowly subsided back into her body again. Once it was fully enclosed by her sheath, then she proceeded to tuck her sister in. Having finished with the final corner of the duvet, she leant in and planted a long, affectionate kiss on Sweetie Belle’s forehead. As she lingered, her horn bathed the room in light as her magic connected with the switch adorning the vibrator. Clicking it on, she watched as her sister’s body began to shake slightly with the reverberations from below, clearly in mild distress. Rarity closed her eyes and walked away, telling herself to ignore it. “Get it together, Rarity. Doctor’s advice is doctor’s advice. Don’t question it, and see her in the morning.”

Sweetie Belle stared at the ceiling in agony. Every inch of her body ached with red-hot lust, as the infernal plug lodged in her rectum shook with an ever-increasing ferocity. Despite masturbating and orgasming three times during the night so far, she couldn’t beat back the flood of desire that engulfed her.

She settled that there was only one course of action. Climbing to her hooves, she stepped awkwardly through the multitude of wet patches on her bed and floor, trying her best not to slip and land face first in her mess. As she cleared the puddles and reached her door, she looked back to see a trail of white, sticky footprints following her movements. How gross. But no matter, she could clean tomorrow.

She quickly trotted down the corridor towards her sister’s room, trying desperately to ignore the urgent cries from her needy body. “Calm it down, Sweetie. Just get down the hall and Rarity will have no choice but to help.”

Arriving at her sisters door, she pushed at it experimentally. Fortunately, it was unlocked and off the latch, so it yawned open with ease. And there was her prize. Her sweet, sweet release.

Rarity laid on her back, only her head and left hoof visible above the sheets. Her eyes were covered by her sweet frilly eye-mask, while the rest of her body was enveloped by her duvet, wrapped like a perverse present for good little fillies. Sweetie hoisted herself up onto the bed and found herself stood over her sister. She looked intently at her sister’s face, wondering just how good she would feel. She had been simply gagging to feel a mare again after her appointment with Doctor Horse and Nurse Redheart, and her sister’s pretty mouth would be the greatest possible choice for her.

There was no time to wait. Sweetie flung herself forwards, busting Rarity’s lips apart with a cruel speed. Rarity woke with a start as she felt a sensation like being hit by a train. Snapping the mask urgently from her face, she looked up to see her sister plowing her cock deep into her throat. She cried out for her to stop, but nothing beyond a muffled moan escaped her meat-filled mouth. Rarity began to conjure up a spell to move her away, but suddenly she was captivated by her sister’s facial expression. Tears of joy were rolling down her cheeks as her face shone with an incredible smile. Rarity hadn’t seen her sister this happy since all of this trouble began. Despite Rarity finding this whole engagement strange and embarrassing at first – she had to admit – she felt far happier knowing it was helping her sister feel so much better. Deciding to accept her sister’s intense thrusts, she seductively moved her hooves up Sweetie’s thighs, coming to rest at her midriff. She motioned back and forth, encouraging Sweetie to speed up.

And of course, Sweetie was only happy to oblige. Her movements suddenly became sporadic and jerking as she shifted her weight forwards and practically fell onto Rarity’s head. She wrapped one hoof around the back of her neck and the other around her horn. With her head held stock still, Rarity was her sister’s sexual plaything. She had all but submitted to her as Sweetie began to ram against her face again. But now she moved with an incredible speed and force, pulverizing Rarity’s muzzle against her crotch. Rarity could feel tears of effort begin to creep from her eyes as the blowjob turned into an intense face fuck. She could do nothing but brace her hooves against the headboard as Sweetie battered her face this way and that. Rarity almost couldn’t handle it, but she also just couldn’t believe just how much she adored the sexual aggression of her sister.

The initial wave of cum that launched from Sweetie’s body was unexpected. Sweetie had barely realized it was coming before it rushed free from her cock. Pouring forth into her sister’s open mouth it sloshed around her belly before settling, only to be joined by yet more spunk as it cascaded down her esophagus. Rarity could feel every inch of flesh around her mid stretch and deform in order to hold her heavy midnight snack. As the flow finally ended, the room was filled with the noises of heavy panting and the faint, muffled whirring as the vibrator shook in Sweetie’s rear.

Sweetie slumped down against Rarity’s chest, exhausted. It was only the sound of Rarity’s voice that stopped her drifting off to sleep. “Now now, little sis. We can’t just have you falling asleep whilst on the job. I know you’ve got more in you. More in those balls.” And without a chance to respond, Sweetie could feel herself being levitated up into the air, before coming to rest between those magnificent thighs.

“You don’t have to tell me twice,” Sweetie exclaimed through a smile and short, sharp breaths. She pushed her shaft against her sister’s quivering vagina, and slowly pressed her way past the folds of flesh.

“Get on it with it dearie! Honestly!” Sweetie was taken aback by her sister’s newfound depravity as she felt a magical grip on her thighs. Suddenly she was launched forwards, hilting herself in her sister in mere moments, floundering embarrassingly as she fell onto her sisters body. Despite the trip the encouragement Rarity had given her was more than enough as her hips began to buck against her sister, practically of their own will. She looked up and stared into her sister’s eyes as she slammed down against her soft, welcoming body over and over again. “Oh Sweetie, you feel so good! I’m so sorry how I shouted at you for… oooh!” Her words turned into a sensual moan as Sweetie began to teasingly rub her sister’s clitoris with a free hoof.

In response Rarity lifted her hind quarters into the air, entwining her legs around her sister’s head. She pulled her sister down against her body, bringing the two even closer. “Rari,” Sweetie gasped through gritted teeth, “your pussy feels so good against me, can we do this every night? Please?”

Rarity focused her vision on Sweetie, giving her a weak smile as every inch of her body screamed for more. “…Of course we can Sweetie, dear, but on one condition.” She leant forwards until her face rested mere inches from her still-bucking sister. “Every time you make love to me, you need to give me another child. Prove to me you are ready for the responsibility of raising your sister’s foals.”

As if in response Rarity felt her sisters cock twitch intensely inside her before firing great jets into her, like the heavens themselves had opened. Gallon after gallon poured into Rarity’s already battered body, pushing past her cervix and into her womb with incredible speed. Sweetie could do nothing but stand there, her hooves gripped tightly around her sister’s sides. By the time that joyous punishment had come to an end, Rarity -to any onlooker - could easily have been ninth months pregnant with triplets. Sweetie - now completely drained of energy – flopped forwards onto her sisters belly, snoring heavily against her juddering belly. As Sweetie slipped into unconsciousness Rarity carefully flicked the switch of the vibrator off. “I think we can forget about the doctor’s advice, we’ve got our own home remedy…”