Little Mare, Big Family

2 Months Later (4 Months Pregnant)

Scootaloo and Rumble pushed a shopping cart down a grocery store aisle. It was already filled to the brim, but Rumble wasn’t having trouble pushing it along. Understandable, considering his supersized frame was wider and longer than two of the things put together.

“Let’s see…” Scootaloo double checked her list, which was over a foot and a half long even after it’d been folded in half. “We still need anchovies, grapefruit, pineapple, hay bacon, oats, raisins, mayonnaise, kumquats, cherries, apples, milk, orange juice, decaf tea, pickles, peanut butter, jelly, grapes, bread, eggs, sugar, spices, tomatoes, celery, beets, radishes, avocados, sugarcubes, cereal, potatoes, cheese, mustard, ketchup… Yeah, we’re gonna need a fourth cart.”

Rumble snickered. “We’ve been able to fit it all in three til’ now. Guess that’s a new record.”

Scootaloo rolled her eyes. “Well, between you, Mister Bottomless Pit, and me being a growing mare…”

Rumble smiled. He put a sail-like wing around her, stroking her with his feathers. “I noticed you’re at my shoulder, now.”

Scootaloo had noticed, too. Where before she’d almost been able to walk under him without ducking, she now actually looked like an adult! She was growing like a weed, already even taller than your average mare! Of course, said growth had come at the cost of becoming a living vacuum, but sucking down food at a breakneck pace was an acceptable trade-off.

And besides, not all of it was going to her. Scootaloo’s pregnancy was starting to show, her formerly slim belly now filled out nicely. Her last check-up had shown the boys were nice and big, the spell working to keep them healthy as well.

“Just you wait, honey.” Scootaloo nuzzled him as they went to the front of the store where their other two filled carts waited. “I’m only getting started.”

2 Months Later (6 Months Pregnant)

“Thanks for the onesies, Rainbow Dash!” Scootaloo waved as the last guest from her foal shower flew off. She closed the door and walked back into her living room, cleaning up the remnants of wrapping paper.

There was the sound of a toilet flush. Rumble emerged from the bathroom, coming over to stand beside her.

“We got a good haul, didn’t we?” he said.

Scootaloo looked at the ginormous pile of gifts. All of it was in fours, all of it for colts. She soon was gonna be outnumbered by boys five to one.

“I know it makes the shopping easy, but I still wish one of them was a filly,” she said.

Rumble snickered. “Better luck next time, eh?”

Scootaloo nodded. She sat back on her haunches, feeling her now noticeably-pregnant belly. Heavy, wide and firm, it’d be dragging on the ground already if she was her old size. She could feel the little wiggles of her sons shifting now and again, lulled into slumber by the rhythmic beat of their mom’s heart.

“I gotta say, no single pregnancy’s ever gonna compare to this,” she said.

Rumble’s tone turned coy. “There’s always fertility spells…”

Scootaloo ignored that. “I’d say the best gift we got are those enchanted diapers Twilight got us. Those are gonna save us a ton of money.” She fiddled with her longer mane, blowing a lock out of her face. “Ugh, I need to cut my mane again…”

Rumble put a hoof around her, kissing the top of her head. “I kinda like you with a longer mane.”

Scootaloo leaned into him. “Yeah?”

“Yeah.” He rested a hoof on her stomach, stroking it idly. It still baffled him that Scootaloo was now tall enough to be able to full-on lean against his chest! Before, she could only do that with her head. “I still can’t believe how big you’re getting! I think you might now be about the same height as a stallion.”

Scootaloo smirked. She pulled his head down, kissing him with a sudden energy. He became putty in her hooves, her hunger infectious.

“I’m catching up to you, big boy,” she said after they broke. “What’cha think of that?”

Rumble’s face flushed, his mouth dry.. “...Catch up. Catch up, please.”

Scootaloo hummed. Her tail swished back and forth, entwining with his. “But maybe I don’t wanna catch up to you, hmm? Maybe I wanna SURPASS you. Maybe I wanna be able to call you Shorty.”

Rumble bit back a moan. He felt himself unsheathe, his dry, earthy scent tickling Scootaloo’s nose.

“And just think,” she purred. “Once these four are born, I’ll be better off to have more foals later. How many did we decide on, again? Seven, I think it was?”

“Screw seven.” Rumble’s voice dropped to a growl. “I wanna fill you up with so many foals, you could be twice my size and still have a baby belly grazing the ground.”

Scootaloo sucked in a breath like a hiss. The thought of having that many growing lives inside her…

It wasn’t long before they wound up in the bedroom.

2 Months Later (8 Months Pregnant)

“I’m home, Scoots!”

Silence greeted Rumble. He stood still, straining his ears for any sound. He’d just been gone for a week on business, and hadn’t really expected to come home to an empty house.

Then Scootaloo’s voice sounded from farther in.

“In here, babe~”

Was… Scootaloo was in the bedroom? Huh, strange, it wasn’t that late. Maybe she wasn’t feeling well? He trotted through their house, past the living room and down the hallway—

A blur of orange hit him in the side. Rumble let out a surprised squawk, suddenly pinned to the wall. He opened his eyes to realize he was staring into a pair of lusty violet eyes.

“Heya,” Scootaloo said.

Rumble went rigid. Scootaloo was eye level with him, face to face without any help at all! She was eyeing him like a piece of meat, her thick, violet mane spilled around her neck.

“Mmm…” Scootaloo licked him, tasting his neck in a long, slow swipe. “I missed you…”

Rumble found it hard to think with all his blood being re-routed. “S-Scoot?”

Scootaloo kissed him, hard, and forceful. Her tongue wrestled with his, cooing as she felt his hooves wrap around her. They made a game of it as they pushed back and forth, but Scootaloo got the better, taking lead.

They broke a while later, out of breath in the best way.

“Welcome back, hot stuff.” Scootaloo petted his chest. “Just so you know, I measured myself this morning, and I noticed that we’re now the same height! Wanna celebrate by fucking each other’s brains out?”

Rumble was at full mast in seconds. He kissed her again, his nostrils flaring with the musky scent of excited mare. They staggered to the bedroom, never breaking the kiss, smashing the door open. In smaller places they would’ve had to duck, but this house had specifically been built to accommodate Rumble’s (and now Scootaloo’s) giant size.

Rumble gave way to Scootaloo’s need. His hooves wandered to pregnant belly, full, round, and firm. She looked like she was overdue with twins! She moaned as he felt how big their four foals had grown, healthy and strong as her.

Scootaloo kissed him even harder, guiding his hooves to stroke her. She could smell his scent as well, mingling with hers and making her even wetter. They didn’t even get to the bed—she broke their kiss and whirled, flicking her damp tail in his face.

“Take me.”

Rumble’s eyes shrank to pinpricks, and in seconds he was properly mounting her for the first time ever. They both groaned, his virile cock shlicking inside her tight folds. Scootaloo’s paunch grazed the ground as her front legs bent, her rear ones locking in place, feeling oh-so-very right. She called out his name as her cunny swallowed his medial ring, the rest of his mammoth size still too much for her tight tunnel… for now.

Rumble held nothing back. He fucked her hard and fast, filling the room with wet thwap! Thwap! THWAP! Scootaloo wailed like a mare in heat, relishing the feel of his entire weight draped over her like a blanket. She revelled in his embrace while begging him for more, egging him on to go harder… DEEPER. Her gravid womb swayed in time his thrusts, a distant part of her noting that if she were still a shrimp, she wouldn’t even be able to walk anymore.

But not only could she walk... not only could she fly… she was getting bigger and stronger every single day.

Rumble couldn’t take it. Before long he was right on the edge, and Scootaloo’s walls clamped down on him, holding him in place. With a guttural cry he came, filling her fertile depths again with sticky seed. Scootaloo’s tongue lolled out her mouth, crooning as she felt his hot, wet heat, combined with the flutters of their children and his weight atop her.

He was soon was fucking her again, the beginnings of a very good night.