Dessert for Fluttershy...
Having decided on playing with Fluttershy, Pinkie Pie went to the kitchen and grabbed a few extra cans of whipped cream, then laid down on her stomach next to her and Sunset Shimmer on the bed, a fresh can of whipped cream in her hand.
Pinkie Pie giggled and sucked on her finger, covering it in saliva. She raised her behind slightly, spreading her legs a bit too, and rubbed the tip of her finger between her ass cheeks, caressing and slicking her hole, then slowly worked her whole finger inside herself little by little, eventually sliding its full length in and out a few times before she pulled it out and gave it another coating of saliva. She let out a soft moan as she tasted herself. She repeating the process several times, actually, a few times more than what was really necessary.
When she was done fingering her ass she took the can of whipped cream and coated its nozzle in saliva as well. Then she slowly and carefully worked the nozzle through her slick ring, pressing it against her ring hard enough to press down the button part of the nozzle, spraying her butt full of whipped cream. After a few seconds she eased up, releasing the button, and turned to face the two other girls, who were still fucking next to her. She grinned up at Fluttershy and said, "Hey Fluttershy, I'm making you a snack. How much whipped cream do you want?"
Fluttershy's eyes lit up as she heard Pinkie Pie and a blush spread across her face as she looked her way and saw what Pinkie was doing. Still railing Sunsets drooling pussy she grinned back at Pinkie Pie and said, "Um, a whole can, please."
Pinkie Pie smiled at her and said, "One assload of whipped cream coming right up," as she once more pressed the button against her ring, holding it in until the can stopped spewing whipped cream. She pulled the empty can from her hole and licked its nozzle clean, letting out another moan. "Your snack is ready, Fluttershy, and it's really really tasty," she said as she dropped the can off of the side of the bed.
Fluttershy smiled at Pinkie and said, "Give me a minute." Before she dismounted Fluttershy gave Sunset a handful of fast and extra hard thrusts with the strap-on, each thrust pushing a ragged gasp out of Sunset as her whole body was shoved half an inch up the bed each time Fluttershy slammed into her dripping sex. Fluttershy leaned down and ran her tongue through her friends wet and reddened slit a few times, sucking on her clitoris on the last time through, causing Sunset to let out a squeaky moan.
Fluttershy then finished by digging her tongue into Sunsets ass and flicking it around while rubbing her friends clitoris. About a minute later when she finally pulled her tongue out she kissed Sunset's now slick hole, and crawled over next to her, kneeling behind Pinkie and immediately planting her face in between Pinkie Pie's spread butt cheeks and lapping over her cream filled hole, slowly applying more and more force with each lick until her tongue slipped into the opening, then dug it in as far as it would go, moaning at the mixed taste of whipped cream and ass.
Sunset Shimmer turned around for a better viewing angle and laid down on her side next to them, lightly rubbing her sore pussy while watching Fluttershy getting intimately familiar with Pinkies insides.
Pinkie Pie giggled as her usually timid friend seemed to be trying her best to give her a French kiss from the other end and said, "Mmm-mm-mmmm, I think someone likes their dessert."
Fluttershy swirled her tongue around inside Pinkie Pie's cream-filled ass and sucked hard, drawing out a mouthful of whipped cream. She pulled her head away shortly to reply, "Mmmm yes, it's delicious."
As Fluttershy returned her mouth to her friends crack Pinkie Pie grinned and pushed, squeezing a spurt of whipped cream out into it. While Fluttershy was swallowing again Pinkie said, "Want me to sit on your face while you eat the rest?"
Fluttershy nodded and gave Pinkies hole a kiss, then laid down on her back and put both hands between her legs, rubbing herself profusely as she watched Pinkie Pie crouch down over her open mouth, her tongue stretched out towards her hole in anticipation.
Pinkie Pie lowered herself until her hole was pressed at Fluttershys open mouth and again being probed by her friends eager tongue. She giggled and squeezed out another, larger, spurt of cream. As the spurt ended she let out a moan as Fluttershy apparently wasnt satisfied with how much shed gotten as she, again, swallowed and sucked hard on Pinkie Pies ring, filling her mouth with softening whipped cream.
Sunset Shimmer took one of the other cans of whipped cream that Pinkie Pie had brought in from the kitchen and covered Fluttershys strap-on, then lowered her ass down around it. She started moving up and down, slowly riding the strap-on while watching the other two play.
Fluttershy swallowed her mouthful and moaned into Pinkie Pie, then repeated the process, drawing out another mouthful of whipped cream, almost entirely liquid by now from being exposed to her friends body heat. She swallowed again and pushed her tongue through her friends ring again, this time eliciting a moan from Pinkie Pie, causing Fluttershy to pull her tongue back out and push it back in a few more times, tongue-fucking Pinkies ass.
After a several tongue-prods Pinkie Pie squeezed her ring tight around Fluttershys tongue and started rubbing herself as she enjoyed the sensation of her friends tongue being buried in her. Watching Fluttershy rubbing herself more and more furiously, under Sunset, as she ate out her ass was hot. She grinned again and squeezed her ass as tight shut as she could around the invading tongue, then loosened up again and pushed out as much cream as she could in one push.
Fluttershy moaned and tried to swallow it all but couldnt keep up with the hard stream of warm, and again liquid, cream being pushed out of Pinkies hole and splashing against her tongue and the back of her throat, causing some of the liquid to escape her mouth and run down her cheeks. Fluttershy rubbed her clitoris vigorously all the while and, as the spurt ended, she swallowed several times, drinking down most of the cream, before she let out a loud gargled moan and swallowed the last mouthful as she came, writhing and shuddering under her two friends.
As she finally relaxed after her orgasm she wrapped her arms around Pinkies hips and hugged her tightly against her face, all the while sucking on her friends cream-leaking hole, greedily trying to drink the last of her creamy treat. As she sucked on Pinkies hole she reached one of her hands further around and rubbed as much of a finger as she could reach with through the front of Pinkies slit.
Pinkie Pie grinned and said, "Save some for me," causing Fluttershy to take a few more long hard sucks but not following them up with swallows. Then, as Fluttershy released her body, Pinkie Pie got up and laid down next to Fluttershy, hugging her upper body and kissing her deeply, sharing the last mouthful of warm liquid ass-flavored cream.
After about half a minute of kissing with their tongues wrestling around in the warm cream they both swallowed and Fluttershy broke the kiss. She smiled at Pinkie Pie and said, "Thank you for a lovely treat."
Pinkie Pie smiled back and said, My pleasure. then let go of Fluttershy and laid down on her side next to her, a big grin on her face as she enjoyed the creamy aftertaste and watched Sunset still riding Fluttershys strap-on.
After a few more minutes of fucking herself on the full length of the strap-on Sunset Shimmer stopped and leaned down to kiss Fluttershy, moaning into her mouth as their tongues wrestled, letting Sunset taste the creamy treat too.
Fluttershy hugged Sunset around the shoulders and, as she returned the kiss, started thrusting into her with the toy.
After a while Sunset Shimmer broke the kiss and leaned down further whispering into Fluttershy's ear, "I love that aftertaste. Would you make me a portion?"
As Fluttershy whispered back, "I'd love to." Sunset raised herself up on her arms and asked, "Help me clean up first?" and, as Fluttershy smiled and nodded, sat all the way up again. She slid off of the toy and turned around, positioning her butt just over Fluttershy's mouth. She leaned down and started to lick the strap-on clean, giving it a thorough blowjob while moaning around it.
Fluttershy closed the distance between her mouth and Sunsets well-fucked hole, lapping over it, then probing it with her tongue, swirling it around inside. After a while she sucked hard on Sunsets ring, draining the small amount of now semi-liquid whipped cream that remained inside.
Author's Note
I hope you liked that. 
And now, it's Sunset's turn. 
Sunset Shimmer pulled her mouth off of the long since cleaned strap-on as Fluttershy finished sucking the cream out of her, both of them pulling their mouths away with a pop, soon followed by a giggle from both of them, joined by one from Pinkie as well.
Sunset said, "My turn!" as she got up, and reached for another can of whipped cream, then switched places with Fluttershy. She ate out her friend's ass for a good minute, moaning as she slathering it in saliva, then popped the cap off of the can, held its tip against the outside of Fluttershy's asshole, and pushed the button. As the crack filled up with cream she slid the nozzle inside and lapped at the cream on the outside as she waited for the can to empty.
Having licked up most of the cream on the outside she said, "Ooh, I'm going to enjoy this.", just before leaning in and sucking on Fluttershy's cream-filled behind while teasing the opening with the tip of her tongue. After swallowing she probed her friends hole again and hugged her around the hips.
Fluttershy giggled, "Ha-ha, someone's impatient." She reached one hand up to squeeze a breast and the other hand down to hold Sunset's hand while she hugged her. She gave the hand a soft squeeze and her internal muscles a quite a bit harder squeeze, spurting a second load into her eager friends mouth.
Sunset moaned into Fluttershy, swallowed and immediately sucked another mouthful out, swallowed, writhing under her friend, rapidly sucking out and swallowing three more mouthfuls, her writhing and moaning growing stronger with each, then finally, on her fourth rapid succession of nearly inhaling whipped cream and swallowing it she came hard, hugging Fluttershy hard against her face and squeezing her hand tight as she thrashed around under her on the bed, moaning into her friends ass.
"O-Oh my!", Fluttershy gasped and said "You must really like this Sunset. I love this and I've never had that happen without also using my hands."
Pinkie Pie, still next to them, was grinning so wide her face was nearly splitting apart. She crawled over and grinned as she looked between Sunset's legs. "I think I'll need a new blanket before bedtime.", then she crawled back and laid down on her side with her head next to Sunsets, watching the motions of Sunset's cheeks expanding as Fluttershy pushed mouthful after mouthful of whipped cream out into her mouth and contracting as Sunset greedily swallowing each one and sucked on Fluttershy's asshole to get the next mouthful of cream out faster around her tongue which was still buried in Fluttershy's hole as deep as it'd go.
Pinkie Pie grinned and said, Whoa! You really like that cream dont you?
Sunset moaned, Uh-huh, into Fluttershy and just kept on sucking.
Suddenly Fluttershy froze momentarily as, to her horror, she felt something more solid than whipped cream pass through her ring. She immediately tried to get up to apologize for not being clean enough and let Sunset spit out the nugget, but to her surprise Sunset just tightened her hug and sucked harder. Didn't she feel it too? Fluttershy thought. She still have her tongue buried in me, she must have
Wait! Oh my, Sunset, you are one kinky girl.
A blush spread over Fluttershy's face as she tried to get her mouth to work. After several seconds her determination won the battle and she asked quietly, "More?"
Sunset moaned, "Uh-huh," into her ass while still sucking out more cream and hoping for more nuggets.
With an audible smile Fluttershy said, "Okay," and started pushing again, spurting out more whipped cream.
Pinkie Pie grinned and said, "How much more can there be?" obviously oblivious.
Sunset paid her no mind, too busy sucking out another mouthful of whipped cream to respond.
Fluttershy just grinned at Pinkie as she pushed out yet another mouthful for Sunset. As finished her next push, she felt a nugget or two and a definite log moving inside her and said, "Plenty."
Sunset sucked out another few mouthfuls of cream, moaning loudly at the increased taste of Fluttershy's shit with each mouthful she drew out and swallowed. She sucked once more and felt a nugget against the part of her tongue wriggling around inside Fluttershy. She swallowed her current mouthful, withdrew her tongue to her mouth, and sucked as hard as she could. As she felt a couple of nuggets float around in the torrent of cream in her mouth she stopped sucking. She played around with her tongue in the dirty liquid and moaned loudly as she managed to squeeze one of them out between her tongue tip and the roof of her mouth. Getting a good taste of Fluttershy's shit was enough of a push to send her over the edge again. She swallowed quickly, just before her body tensed up and started to spasm.
Fluttershy grinned and said, "Oh my
".
Pinkie Pie exclaimed, "Whoa, again!?" and grinned as she reached a hand down between Sunset's legs. She rubbed her quivering friend a bit and withdrew her soaking wet hand from Sunset and started licking it clean, while watching Sunset's face as she came down from her orgasm, and rubbing her other hand between her own legs.
As Sunset relaxed and laid under her, lazily flicking her tongue over her rear opening, Fluttershy squeezed Sunsets hand and asked, "Sunset? Do you want more still?"
Sunset pulled her mouth free, grinned, and said, "Guess," then immediately put her tongue back to work, slowly wriggling it back into Fluttershy and flicked it about it her hole that once again tasted more like ass than cream.
Fluttershy grinned back, squeezed Sunset with both her hand and her ring for a few seconds and said, "Ooh, that's a tough one. Let me think abo-", then eased up on both and pushing out more shit-flavored liquid cream as hard as she could without risking to push out the log too.
Sunset hugged her tighter around the hips and swallowed greedily. She flicked her tongue around inside Fluttershy as she sucked again, and as she was half way through her next suck, she felt something larger than the nuggets she'd already had and swallowed. She started to explore it inside Fluttershy, circling her tongue around it and probing it with her tongue tip, getting a good taste of it.
As the log made it the rest of it's way to her opening Fluttershy squeezed her ring tight around Sunset's tongue again to keep the log from slipping out, from her friend's hard sucking. As she kept it right at her opening she could feel Sunset licking at it and pushing against it's end.
Sunset hugged Fluttershy tighter and resumed sucking, lightly this time, then after a few seconds of Fluttershy not easing up the pressure of her ring around Sunset's tongue she withdrew it and moaned, "More," into her.
Fluttershy loosened up her ring but didn't push, instead letting Sunset pull it out of her with her sucking at her own pace.
Sunset sucked harder still, flicking her tongue over Fluttershy's slowly widening opening and more and more of the log of shit as it was sliding through it, into her waiting mouth. She squeezed Fluttershy's hand hard as she bit off small piece and swallowed it. Then she sucked again, drawing more of it into her mouth, faster now from Fluttershy's ring getting more used to the stretching of the log sticking out through it, and biting off a small mouthful this time, then chewing it up.
Next to them Pinkie Pie's face took on a surprised and slightly confused expression as she saw Sunset making chewing motions, then it clicked and she exclaimed, "WOW! I didn't know you were that kinky, Sunset!", drawing the attention of Applejack, Rainbow Dash, and Rarity whom had all been busy with their own three-way on the floor.
"What's going on?", asked Rainbow Dash.
"N-No-Nothing is going on," said Fluttershy, her face beet red.
Pinkie Pie looked from Sunset to Fluttershy and back again, and kept quiet.
Sunset's cheeks were turning red too at the sudden attention on the situation. She swallowed her mouthful of Fluttershy's shit and just laid there under her for what felt like forever with everyone staring at them and no one saying anything. Then she swallowed again and gave Fluttershy's hole a hard suck, but not drawing more of the log out as Fluttershy had squeezed her ring tight. She did it again, still to no avail, then started to probe at the hole again with her tongue, and rubbing her thumb over the back of Fluttershy's hand, to get her to loosen up.
Fluttershy had frozen up and didn't know what to do. Thought after thought was racing through her brain as she was trying to figure out a way for this to not make Sunset, and to some degree herself, look like freaks. Sure the others were into some interesting things too and fairly open-minded, but this was something new for the group, and probably not something any of the others were into, or maybe even would be comfortable seeing. After what felt like minutes of not being able to think of a good way out of the situation, she noticed Sunset rubbing her hand and still sucking and probing at her, she noticed, tightly squeezed shut hole. Really? She wants more of it
With all our friends watching?, she thought. After several more seconds she relaxed a bit, after all if Sunset wanted to continue even with their friends watching-she'd still be a freak for doing this, but she'd be the lesser freak at least-it couldn't be that bad. She squeezed Sunset's hand and rubbed her thumb over its back too as she slowly relaxed her ring.
Sunset slowly sucked the log out of Fluttershy again, bit off a piece, slowly chewed it up, and swallowed it.
The others stared in silence.
By the time she had chewed up and swallowed the fourth mouthful she had gotten comfortable with the larger audience and by the sixth and final piece she even found it kind of hot to be watched doing it, almost making her wish there had been more. When she had swallowed the last mouthful she pulled her mouth away from Fluttershy's asshole and gave it a kiss while she squeezed her hand. A few seconds later she said, "Thank you Fluttershy," and let go of her.
Fluttershy got off of Sunset's face and sat next to her on the bed, fidgeting and still blushing as the thoughts had returned to her.
Sunset sat up and smiled at Fluttershy, then draped an arm around her shoulders and hugged her.
"Well that sure was something new," Applejack said and looked at Rainbow Dash and Rarity.
Rainbow Dash was still staring, her jaw on the floor.
Rarity was masturbating and blushed, as she noticed Applejack looking at her and raising an eyebrow.
Fluttershy finally thought, just another freak, in the freak kingdom, and leaned over to kiss Sunset, and, still slowly and cautiously, turned it into a French-kiss as her curiosity got the better of her. As she got a proper taste of her own shit in Sunset's mouth she abandoning all caution and went crazy, licking all over the inside of her mouth, trying to lick off as much of the soft shit as she could from between Sunset's teeth.
Pinkie Pie watched the two, grinning.
As Fluttershy broke the kiss Sunset smiled at her with a happy grin on her face.
Pinkie pie jumped up and exclaimed, "Oh! Oh! I just got the best idea!", everyone looked at Pinkie Pie, and she went on though at a more normal volume, "Girls, lets make Sunset the special pineapple drink. I think she'll like it."
Fluttershy smiled and said, "I think that's a great idea."
Author's Note
When you exercise you've got to remember to replenish your fluids.
Drinks for everyone! 
