Pounding Flurry

Pound was stunned silent, with Pumpkin's face that of a filly finding out what their Hearthswarming present was early. Before Pound could protest, Pumpkin interjected. "The princess said she wanted it, you have to do it!" Pumpkin said, with Pound still flabbergasted at how a simple game of tag could turn into this!

"Bu-buh..." Pound semi-interjected, but saw as Flurry lay on the pillow on her back, making herself like Pound had described seeing his mother under his father – her croup on the edge, her tail out of the way and displaying herself entirely to him – Pound's body knew exactly what this was. As he saw that little nub-thing peak out of her slit, he suddenly felt the urge to climb on something and start moving his hips again, and he understood what that urge was now as he saw Flurry before him; it was so he could climb on her like his Daddy had his Mommy!

"I...I wanna try that special hug. It felt so good when you were touching me with your hoof, and...you said your parents were really happy when your daddy put his...thingy...into your mommy's thingy and put his milk inside her, so...can you put yours in mine?" Flurry asked, her pink cheeks nearly a deep red now with as hard as she was blushing. As she thought about Pound climbing on her, she felt something moving in and out of her fillyhood, though it wasn't like she was peeing. It was like her fillyhood itself was moving in a way, muscles she'd never used before or known existed moving now to make it so.

<I'm asking him to put his willy in me and my filly parts are moving!>

Pound wasn't sure why, but seeing Flurry laying on the bed like that on her back, showing her fillyhood to him and it moving and a new, nub-thing poking out at him like that, awoke something in him. The same thing that was roused the previous night and by Pumpkin's fillyhood's scent, but this blew all that out of the water. He wanted, needed, to climb on her and move his hips, just like his Dad had done to his Mom.

"I...I dunno."

"Do it Pound. Do the hug with her!"

"Please?" Flurry asked, with her nub-thing peeking out at him again and again.

That did it. Finally, the overstimulated Pound climbed onto the side of his child-height bed, now looming over the smaller Flurry, his chest meeting hers as he climbed over her. He blinked as he found himself like this, having done it beyond his conscious control it would seem, as she'd shown him her nub-thing again and again, him really loving it when she did that for some reason. It felt like she was...asking him to climb on her.

"Um...Pound...?" Flurry asked, starting to get second thoughts about this as she felt how heavily he weighed on her, as well as nervous about not knowing what to expect.

Pumpkin had meanwhile gotten off the bed and gone around behind them, getting a good look between their legs as Pound's own tail flagged up and out of the way, unintentionally showing his sister his 'assets' in full and Flurry's alongside.

"P-Pound? Maybe...we shouldn't..." Flurry tried to say, but she instead gave a quiet gasp as she felt Pound's hips shifting against her now, feeling his long, hard colt-thing scraping against her belly, nudging one of her small, immature, nub-like teats. A burst of the same kind of sensation as when he rubbed her fillyhood rolled through her now, making her shudder a little under him as he pulled his hips back and adjusted his aim.

"Down a little Pound! Your thing's almost touching her fillyhood!" Pumpkin called up, her nose virtually touching his member as she looked closely at the action.

Following his sister's guidance, Pound lowered his hips...but a bit too much. He felt a hard, round, warm form on his willy's head now, trying to push in on instinct to the warmth, but was shaken out of his state by a quiet whimper from Flurry.

"P-Pound...that kinda hurts...not there," Flurry whimpered out, shifting her own hips downwards to guide his hardness away from her butthole, instead trying to find her fillyhood with it, "Higher."

After another few thrusts hitting her belly then sensitive teat again, Pound finally found something wet, warm, and much looser than what it'd touched before, against his head. Without thinking, running purely on what felt right to him, Pound slammed his hips forward, engulfing his colthood inside of that warmth.

Flurry cried out in pain, feeling a sudden uncomfortable, intense stretching inside of her lower belly. She felt like something inside of her tore, a burning, stinging pain radiating through her after it did. "O-OW! GE-GET IT OUT!!!" Flurry exclaimed in panic, trying to get away from what had hurt her on reflex, but being pinned down under the heavier Pound, she was forced to keep it inside her as he held her down on instinct. Her survival instincts started to kick in, her horn starting to light as though she were going to force Pound off of her with magic, but dimmed again as another instinct kicked in. One that told her that this was a good thing despite the pain, to bear with it and she would be OK. So she did.

"POUND! WHAT DID YOU DO TO HER?! I THOUGHT YOU SAID THIS WAS SUPPOSED TO FEEL GOOD! POUND, SHE'S BLEEDING!" Pumpkin squealed out, equally as horrified and panicked as Flurry was as she heard Flurry cry out in pain, seeing some blood coming from her brother's and her union between their legs, his 'colthood' half inside her 'fillyhood' now.

Pound, meanwhile, was oblivious to the commotion going on around him, oblivious to Pumpkin trying feebly to pull the stronger colt off of Flurry. He was simply enraptured by the feeling of warmth and wetness surrounding his colthood for the first time, pulses of strong sensation going through him with each squeeze of her extremely tight passage spasming on him, her body struggling to adjust to the substantial girth spreading her immature passage so sharply. He felt as her insides seemingly form-fitted and gently rippled over his length, a small inner ring just past her entrance squeezing him tightly, as though it were tightly masturbating him inside of her. A thick bulge inside of Flurry pressed against his own belly too, with him realizing later that his willy was so large inside of her that it was causing a significant stretching in her, his girth causing her belly to slightly distend to accommodate it.

This felt right to Pound. This is what his colthood had wanted the previous night, not his hooves. He'd needed to be between a female's legs, in her fillyhood. It felt so good to put his colt parts in her tight, squeezing filly parts, like it was supposed to be there all the time.

As Flurry calmed down after a good number of seconds of being pinned under and filled up by the half-hilted male, her body started to adjust to being spread. When she tried relaxing her newly-discovered 'down there' muscles a bit, she found it helped a lot, with her then finding that it wasn't hurting as much anymore. "P-Pound?" she asked, confused, as she felt another sensation slowly replacing the pain within thirty seconds of him penetrating her. It started faint at first, but eventually it grew stronger with each twitch from Pound's colthood in her, until it felt like a gentle, happy glowing feeling in her belly, right where Pound had put his pee-pee. It felt...good, a stark contrast to the pain she'd been through.

Finally Pound recovered his senses, feeling Pumpkin still fruitlessly pulling on his loins with both forehooves and her weaker magic, trying to pull him off of Flurry it would seem, and actually gaining some ground. "H-Huh? What're you doing sis?" Pound asked, still in a daze as he felt his pee-pee being pulled out of that perfect-feeling warmth surrounding and occasionally squeezing his top part, resisting by trying to push back in on instinct.

"Get off of her! Your pee-pee's hurting her and making her fillyhood bleed!" Pumpkin half-shouted, not noticing how calm the other two foals were now.

Pound's eyes widened as he looked down to Flurry, expecting to see her in agony, but instead saw her eyes closed, a small smile on her face. Pound was completely confused. "Uh...sis...Flurry's smiling." Pound replied, quirking an eyebrow as he looked back to the panic-stricken filly.

Flurry was indeed smiling as she felt pain completely replaced by that warm feeling, the once-painful stretching feeling very welcoming now. Oddly, it felt like Pound's colthood was hugging her from the inside. "I...wh-what's that...feeling...?" Flurry asked, her thoughts hazy and her heart thudding against Pound's chest, "...it hurt a lot at first but now it...feels...really nice...? How are you so...deep in me?"

"I'm sorry for hurting you, but I only put my pee-pee in your hole, like our parents did," Pound said, relieved that she wasn't hurting anymore like Pumpkin had said she was, "But I...I feel the same. I think you have a kind of...tunnel in you, between your legs?" he responded simply, not knowing himself.

"I-It's like your pee-pee is...kinda...opening me...and, like, hugging me inside? It doesn't hurt now...just feels all warm and...nice..."

"Mmhm. It feels like your fillyhood is hugging me too, but on my colthood..."

Pumpkin was beyond confused; Pound going inside her had really hurt Flurry and made her bleed when he'd put it in at first, but now it felt really good and she liked it? "Huh?" Pumpkin asked, "M-Maybe you should take it out of her so we can see what happened?"

"I...I don't want him to..." Flurry responded instantly, whining a little as she did when asked to do something she didn't want to do, her smaller rear hooves squeezing against his sides. It felt...right to have Pound's thing deep in her filly-thing like this, and she didn't want him to stop having it in her.

"I...I wanna stay in her too. It feels really warm and tight and..."

"Right."

"Right."

Both Pound and Flurry said it at the same time, sharing a quiet chuckle as they did.

"Are you OK now, Flurry?"

"Mmhm. S'nice..."

"Can I try moving my hips like Daddy was? I...I really want to..."

"I...I think so...yeah, go ahead."

Flurry really wanted Pound to start moving in her again, something deep inside her telling her that being spread open by a colt like this was the right thing to do. Pound slowly pulled his hips back in response, before slamming them forward again hard on his breeding instinct, getting a forced 'UH!' from Flurry as he did, that hurting a little for her.

"N-not so...hard...try...slow..."

"OK..."

This time Pound slid out slowly, and slid in just as slowly, jerkily, it taking all of his willpower to not just ram his hips in and out of her rapidly like his dad had with his mom. Each time he slid in or out, intense tingles would roll through his willy and up his back, making him want to do it again, and again. The feeling of Flurry's warmth surrounding him every time made him start to give quiet, cute grunts with each slide in.

"T-That's p-peeeeeerfect..." Flurry whimpered out, the warm 'hugging' feeling inside of her growing again every time he was inside her, with each slide feeling like it ended further and further up her belly, until finally she and Pound felt his tip hit something and stop with a jolt, his member stopping just before his medial ring.

"H-huh?" Pound stammered, unable to manage much more given his clouded mind, feeling his tip hitting something deep inside of her that stopped him from going deeper.

"I...I think you found a...stop inside me?" Flurry suggested. It had hurt a tiny bit when he'd hit that 'stop', but Flurry hadn't really minded. Something about him touching that deep in her felt...right.

"B-but Daddy's was all the way inside Mommy...maybe...fillies are different than mares in there?"

"M-M-Maybe...j-just keep going like before, but don't go deeper...I guess? It feels...really good when you're moving deep in me like that...mmm...and your tip is getting bigger~...opening up my filly parts more!"

"It feels...really great for me too. I...You feel lots tighter now around my tip! S-something's coming soon...m-my colt-milk, I think..."

Pumpkin remained on the floor watching the action from behind, using her magic and hoof to spread her own fillyhood apart gently, gasping at the sensations of it even spreading a little, before it'd started hurting and she'd stopped pressing deeper. As she watched as Pound's motions continued to slowly rock in and out of Flurry, she kept slowly rubbing herself on reflex, feeling her own slit pulsing against her hoof like she'd seen Flurry's doing even now, her little nub peeking out and 'kissing' her hoof...before something suddenly changed.

"Alright," Flurry said after some minutes of Pound rocking into her, nearly drooling at the feelings; "please stop and take it out Pound. I wanna try this the way my mommy and daddy did it now, with me on top!" Flurry said, though with some reluctance to losing that filling, lovely warmth inside of her again. Her own sensations were just starting to build...

Pound very reluctantly slowed then stopped his instinctive humps, then even more reluctantly pulled out of those warm confines he'd quickly learned to love, it being kinda hard to remove his flare given how swollen it had gotten towards the end. He was feeling like he was almost ready to do the 'colt-milk' thing like he'd done the previous day, but forced to stop before he could. "Filly insides are awesome!" Pound exclaimed, getting a smile from Flurry.

"Mmm...so are boy parts...!" Flurry responded, "Here, you lay on the bed like I said Daddy did, then I'll climb over you and put your thingy in me like Mommy did Daddy's." Flurry explained, then moved Pound to lay on the bed the same way she'd described Shining Armor and Cadence laying, Flurry then straddling him. Soon she felt his flare prodding around her thighs, before quickly hitting home, his colthood once more pressed to her fillyhood as she half-stood over him.

"Yes...boy parts are awesome! Bro, your thingy's way cool too! I love your pee-pee!" Pumpkin added as she shifted positions as well, a few drips of her filly-juice drooling out of her as she stood and climbed onto the bed, laying on her back, leaning against the bedframe and spreading her hind legs so she could watch the young mare and stallion already laying on the bed through them. She also started unintentionally giving Pound quite a show as she shamelessly started rubbing between her slit as he watched her do it; seeing his sister touching herself because of him made Pound's cheeks flush pink.

In position, after some adjusting by both parties, Flurry placed her hooves onto Pound's chest for balance, Pound reciprocating with his hooves softly gripping her around the haunches and croup, before she slowly eased Pound's colt-hood into herself once more.