“Wait, how? How could he do that to both of our fillyhoods at the same time?” Pumpkin asked, looking befuddled as Flurry had suggested it.

“Well...” Flurry started, putting a hoof to her chin, “what if...one of us fillies could lay on the other tummy-to-tummy...then Pound could climb on us and...put his colthood between us like that?”

The twins simply looked blankly at her.

“C’mere, I’ll show you.” Flurry said, nodding towards the bed. “Pumpkin, since I’m smaller, maybe I should be on top of you...so just lay on your back here, then I’ll get on top of you...”

A few moments, and much fumbling and direction, later, Flurry lay atop Pumpkin so that their chests and bellies were pressed together, Pumpkin’s rump positioned just on the edge of the bed and Flurry’s directly above it. Their two clitoral hoods were pressed together, their nipples slightly hardening as their teats met as well. Pound looked on and felt himself swiftly growing hard again from the sight presented to him, seeing both fillies’ slits presented to him like that making him want to mount them, the two fillies softly grinding against each other subconsciously in their shared arousal. Their clits winked and kissed the other’s, both fillies softly whimpering in response.

“S-so Pound, all you need to do is climb over us and put your thingy between us, then start moving your hips...and it should make all three of us feel good..I hope.” Flurry said, before nodding towards the two of them.

Pound quickly felt his member was fully erect once more, even if this time he didn’t feel quite as powerful a desire to climb atop the young mares as he had the previous two times. “I...don’t know if I can do it again after this...I think I’m almost out of milk or something...” Pound said, before then mounting the two fillies and getting an eager shudder from Flurry as she felt his chest grinding on her croup. His hips started to instinctively shift, seeking the warmth of his mare’s entrance, and he gasped as he found his sister’s, still slippery with his semen.

“P-put it between us Pound...just one more time...please.” Flurry instructed, before shuddering a bit as she soon found Pound’s flare on her slit’s curve, her clit responding with a wink against it.

“OK...I think I can do it...one more time...” Pound said to encourage himself, before then sliding his hips a little higher instead of following his instincts and slamming it into his sister's pussy, his willy easily sliding between the two well-lubed fillyhoods.

Pound groaned as a wave of fatigue washed over him from his previous two romps, but his breeding instincts were spurred on by the two separate, lightly-musky scents driving his hips, those distinctly female scents making his breeding instincts fire off, forcing his aching hips to move between their two marehoods.

Pumpkin and Flurry moaned out together as they felt Pound sliding between both sets of their filly-parts and then between their teats and along their bellies, causing Flurry to both giggle and moan at the mix of tickling and pleasurable sensations of Pound’s hardness sliding along her ticklish belly.

Pound felt tired but something drove him on, his hips sliding along his mares’ slippery vulvas and between them to their now-slicked belly fur, semen and mare fluids matting their fur. He felt like he’d run miles now, panting softly already, but he continued on; it simply felt too good not to, feeling both of their clits pushing against him as he entered, their bodies pressed together and confining his member not unlike their insides had.

Flurry started to grind her hips on instinct against the hard rod against her, trying to encourage it to enter her, but instead only earning a gasp from Pound as his sister soon joined in as well, both of them rubbing their hips against him and each other. All three were in a blissful state as they continued to squirm and grind and thrust against each other, once more working to gain more and more of those lovely feelings that doing this caused; not knowing why, but simply knowing that it felt really good and they wanted more.

“W-Why d-does this f-feel so good...?” Pound asked nopony in particular, his thrusts speeding up a bit more, his member throbbing between his sister's and friend’s bellies. their profuse fluids easing its passage. Pound continued to slide between his mates for a while, reveling in their sounds of pleasure, before he could finally take the self-induced teasing no longer. While it felt good to be between something warm and soft as he was, it simply didn’t feel right to him. He needed something more as he felt his thrusts starting to grow more punchy and desperate, knowing he was close to ‘milking’ again.

He knew exactly what that ’something more’ was.

“Flurry...I need to...” Pound whimpered out, before shifting his aim higher, and at once penetrating Flurry’s very-ready passage swiftly. Instead of the sudden penetration hurting her this time, given just how soaked and ready she was unlike her first time. Flurry cried out loudly in pleasure, feeling Pound splitting her apart again in a very pleasurable way, then pounding in and out of her filly-place and making her feel very good again. “Go...yes...YES!” Flurry squealed out, no longer able to restrain her voice anymore as Pound lived up to his namesake.

It wasn’t long until Pound, feeling the tight, warm insides of a mare surrounding him and squeezing on him once more, felt that tightness in his pelvis growing taut. That urgent need to be deep within Flurry was again at the forefront of his thoughts as he felt his tip getting really big inside of her, his throbs getting more and more rapid.

“F-Flurry....m-MILK!” Pound groaned out, feeling Flurry’s insides getting especially tight around his flare, before he slammed his hips as deep as he could, up to his medial ring inside of her as he felt everything coming to a head. As he held deep, feeling Flurry’s insides hugging him quickly and tightly again as she herself tensed up, Pound finally could take no more.

Pound let out an especially loud breeding whinny as he started squirting inside of Flurry’s very womb again, his glans process pressed tightly to her cervix, his thick flare preventing anything from getting past and instead refilling her already-filled uterus further. Each and every pulse-pulse-pulse his willy made inside of her made his hips jerk forward lightly each time, his head tilted back in the absolute bliss mixed with strong fatigue he was feeling as he unknowingly claimed his mare's womb once more.

Flurry, meanwhile, felt as her already-tight insides constantly gripped and milked Pound of everything he had left, her hips pushing back against him to keep him as deep as she could inside of her, as her instincts demanded she do. She felt so perfect as he throbbed so deep within her, that warm, gooey feeling growing more with each twitch. She didn’t know why she loved it when he put his warm colt milk in her so much, just that the intense tingles it gave her made it all feel so wonderful.

“Wow...you’re putting your colt-stuff inside of Flurry again, huh?” Pumpkin asked with a hint of jealousy as she observed all of this from beneath the two climaxing ponies, seeing her brother’s and Flurry’s O-face from beneath, feeling the wetness of Flurry’s release drooling down onto her own soaked crotch as Pound’s and her hips still jerked towards the other’s.

Eventually, Pound’s hips slowed, growing relaxed as his orgasm finished, leaving Flurry’s uterus and innermost passage painted white and her lower belly lightly swollen again. He was panting heavily now as his quickly-softening colthood slid from Flurry with its job once more complete, followed by some of his now-thinner third load. Pound collapsed to the side and ended up on his back with legs splayed open, Flurry falling to the other side on her now-lightly-swollen belly.

“Oh-no-oh-no-oh-no...”

Pumpkin heard a high-pitched, panicking voice coming from the door, looking over to see Pinkie Pie sitting in the open doorway, looking a few shades paler than her usually hot pinks.

“Mr. and Mrs. Cake are gonna kill me...and Shining Armor and Cadence...” Pinkie stammered out as she looked on the scene before her; both fillies with semen dripping from their vulvas and Pound’s penis still coated in the same, the scent of two mares in heat alongside a virile stallion prevalent in the room. Pinkie swayed, before promptly wavering and collapsing to the floor, unconscious, her worry of what may come of this making her pass out.

“Um...is she OK?” Pumpkin asked, but found Pound fast asleep beside her, Flurry looking too dazed to notice anything, surely soon to be asleep herself. Deciding she could worry about this all later, feeling so utterly relaxed and tired now, Pumpkin soon joined her brother and friend in the dream realm, blissfully unaware of what their actions may have set into play.

Author's Note

I was asked by the commissioner to mention that, as of 9/20/17, there is a new companion image to this story created by Dankflank on E621.net. This greatly-detailed, and might I add incredible, image for this chapter can be found on e621.net with image #1335081.

This image can be found on dankflank’s userpage at (ALSO NSFW CONTENT): [url=https://e621.net/post/index/1/]https://e621.net/post/index/ 1/dankflank.

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