Curious fillies, and horny colts.
"Okay, ready?" Buttermilk asked, lifting up his cup.
"Hold on, wait a moment!" Pure Delight said, moving around the table.
Pure Delight was his science partner for the upcoming science fair. She was pretty with high cheekbones and slightly slanted eyes that gave her a hawkish appearance. Her coat was light silver with a lavender colored mane she kept back in a ponytail that draped along the side of her neck. Her cutie mark was a wedding cake with little hearts decorating its side. She had an excitable personality that made her rather unpredictable and random at times. Buttermilk had a crush on her since grade school and had never gotten up the nerve to ever tell her his true feelings for her.
Pure Delight reached up and slipped safety goggles over his eyes and smiled. "Remember, safety first." she then slipped her own goggles on and nodded. "Okay, ready."
Tipping the cup, Buttermilk poured the vinegar into the paper-mache volcano. After a brief moment, white foam rose up and broke over the crater rim, flowing down the sides onto the village they'd built at the bottom with Popsicle sticks.
Pure Delight let out a twittering laugh and clapped her hooves together excitedly. "Amazing! It worked!"
"Of course it worked, why wouldn't it?" Buttermilk said, taking his goggles off. Suddenly he became acutely aware of how close Pure Delight was standing to him. Her shoulder was brushing up against his, making his heart race as he found his nose filling with her sweet scent. For the thousands time that day he had to resist the sudden urge to reach out and kiss her and confess to his feelings for her.
"Buttermilk, its time to do your chores." his mother's voice called out from the kitchen.
"Okay mom." Buttermilk called out, annoyed at the sudden interruption. Standing he turned to head for the door. "I have to go do my chores now."
"Oh! Can I come and help!?" Pure Delight asked.
Buttermilk was a little surprised by her request as he looked back at her. "Sure, I guess, Its just boring chores, but you can come if you want."
Leading her out the door, she followed along as he took her down to the barn. Swinging the door shut behind them, he led her over to the feed. "Here, how about you fill this bucket with oats and pour it into each of their troughs while I take them their hay." Climbing up to the hayloft, he portioned out the hay and carried it back down to add it to their feed. Once he had finished, he went outside to close each of their stall doors.
Returning inside, he found Pure Delight peeking under a tarp that was covering something in the corner. "What's this?" she asked, pulling the tarp off, revealing a strange barrow shaped object.
Buttermilk felt himself flush as he realized what she was looking at. "It's umm, well... It's... for collections."
"Collections?" Pure Delight asked curiously as she examined the object. "Collecting what?"
Buttermilk cleared his throat as he scratched at his neck. "Well, ah... its for use with the bulls." How was he going to answer her? "You know. For collecting their... calf making stuff."
A look of wonder came to her face. "Oh! It's a breeding mount for collecting semen!"
Buttermilk let out an embarrassed laugh. "Yeah. That's what it is."
"Oh wow!" Pure Delight moved around to the back side to peer into an opening there. "Is this where they put it in?"
"Ah... well, sort of." Buttermilk answered. "There's a, ah... vaginal sheath that needs to go in first. My mom keeps them in the back room."
"I want to see how it works," Pure Delight said with sudden interest. "Would you mind showing me?"
"Wait! What?" Buttermilk wasn't sure he'd herd her right. Did she just ask him what he thought she did!?
"Come on, it'll be fun!" She said, trotting to the door to the back room. "Where are those sheaths you mentioned?'
Buttermilk stared after her. She wasn't serious! Was she? Rushing to the door, he looked in and found her searching through the cabinets there. Not knowing why, he crossed the room to the corner and opened a cabinet. "They're right here." He took out a box filled with sealed vaginal sheaths and lifted one out to show her.
Pure Delight gazed at the sheath he was holding with curiosity. "Oh wow, it's bigger than I thought. What's that rounded part right there for?"
Tearing open the sealed packaging , Buttermilk took up a container and slipped it onto the end of the sheath. "It's for holding all the semen that gets deposited by the bull when he ejaculates." Buttermilk explained, showing how it would catch it.
"Oh, I got to see that!" Pure Delight exclaimed. "I know! How about you show me by using it yourself! It'll be really interesting to watch how it's done!"
Buttermilk stared at her oddly intense gaze as she waited for him to answer. His first thought was that there was no way he'd do it, but then deeper down, a part of him was excited by what she was asking. His heart hammered in his chest as he tried to bring himself to turn her down. The part of himself that was interested, quickly began to win out. Why not? What she was asking him to do wouldn't hurt anypony, in fact, it would be fun.
"Okay, I'll show you." An exhilarating thrill rushed through his body as he agreed to her request. "But only if you promise to never tell anypony! This will be our secret." He waited for her to nod before turning and headed back to the breeding mount. A part of him couldn't believe he was about to do this! And right in front of the filly he had a crush on too!
Pure Delight followed with a look of eager excitement at what she was about to witness.
Buttermilk took the vaginal sheath and slipped it into the back of the mount while Pure Delight moved around to a good spot to watch. Excited by what he was about to do, Buttermilk's stallionhood had slipped out and quickly began to grow to its full legth. He flushed with embarrassment when he noticed Pure Delight intently gazing at his hardening cock. For some reason he found that he rather liked her looking at him and made sure she had a clear view of his fully hardened penis.
Positioning himself behind the mount, Buttermilk reared up onto its soft padding and worked himself into place. Gripping his legs around its sides he thrust his hips forward, searching for the artificial pussy opening. Feeling himself press up against the mount, he pulled back and tried again, mashing his shaft along the bottom leaving smears of pre along its frame. "Umm... Can you help line me up?" he asked, looked over at Pure Delight.
"Oh! Sure." Reached her hoof out, she took his cock and helped guide it to the sheaths opening.
Feeling the soft sheath envelope around his penis, Buttermilk was glad that they came pre-lubricated as he easily slipping inside. Letting out a pleased sigh, he tightened his grip around the mount as he thrust his hips forward, driving himself all the way into the sheath with a wet slick.
Pure Delight watched with interest as he withdrew himself and bucked back in. Keeping his pace steady, the breeding mount rocked under him as he repeatedly drove his hips forward, pounding his cock deep into the artificial pussy. Panting from the sustained effort, Buttermilk looked to the side and was surprised when he saw Pure Delight stroking her marehood as she watched him, her eyes intent on his thrusting cock as she bit her lower lip. Along the legth of the barn, cows lifted their head to watch with unrestrained interest as their pussies dripped with arousal. He had forgotten that they would be watching too.
The ribbed walls of the artificial sheath gripped and slid along his stallionhood as he repeatedly humped himself into it, the tip of his cock pressing up against the narrow collection aperture at the end as he began to draw closer to his release.
Pure Delight noticed his thrusts growing more uneven and frenzied as he began grunting with exertion, the sounds of his hips slapping the backside of the breeding mount growing louder. "Are you getting close?"
Buttermilk could only nod as he felt himself beginning to flare wider in the sheath, stretching the narrow tube tightly around his feverishly plunging cock. With a final thrust forward, he let out a long moan and held himself as deeply as he could go, locking himself right up against the artificial cervix as spurt after spurt of his virile seed ejaculated out into the collector.
Pure Delight eyes grew wide as she bent down close to his throbbing cock to watch. "Oh wow! I can actually see it pulsing! That's amazing! I wonder what it would feel like to have that happen inside me!?" Her hoof quickened as she rubbed it against her pussy and her body suddenly tightened as she came. Her juices splattered onto the ground as her pussy clamped and rolled, trying to milk a cock that wasn't there.
Buttermilk moaned as he ground his hips into the back of the breeding mount with each surge of his hot seed as it squirted out into the collection container, filling it to its limit. Letting out a pleased sigh, his ejaculations slowly diminished as he sagged down onto the mount, spent. Panting for breath, he looked down at Pure Delight as she smiled blissfully from her own release. "There. What did you think?"
"That was amazing," she answered breathlessly, her body shivering as she came down from her own orgasm.
Pulling himself back, Buttermilk withdrew his softening cock from the sheath and let it fall free with a wet pop as he dropped back down to his hooves. With his penis swinging below him, his seed dripped onto the ground as it slowly began to pull back into his sheath.
To his shock and surprise, Pure Delight suddenly bent her head under him and licked his cock. Lifting her head back up she smacked her tongue as she made an odd face. "Hmm, what an interesting flavor."
Shaking his head, Buttermilk extracted the vaginal sheath along with it's filled collection container from the mount and began looking for a place to stash it until he could dispose of it properly later.
"Can I keep it?" Pure Delight asked, moving closer.
"What?" Buttermilk turned to look at her. "Why would you want to keep it?"
She smiled as she looked the cum filled container. "Its for science."