Soarin’ woke up with an erection in his face.

Now, when most ponies use the words “in your face,” they usually mean something like: “He just kept arguing—he wouldn’t get out of my face!” Or: “I’ve got so much work. I’ve got failure staring me right in the face.” Or: “She kept talking about her flowers. It was so, just, like, in my face.”

Most ponies wouldn’t mean, usually, that something was literally, physically, directly in front of their skull. Soarin’, however, woke up to see his one-eyed snake staring down at him from mere inches away.

Morning wood was a bitch.

“Ah, damn,” Soarin’ mumbled. He tried to turn over, get back to sleep. But the second his eyes closed, his erection throbbed. It actually bumped against his chin, not to mention the fat glob of pre it splattered all over his chest. No matter how hard he tried to clear his head, to return to the warm, mindless haze of sleep, his boner kept poking into his thoughts. Before long, the throbbing, tightening sensation of teasing, almost-pleasure between his thighs grew far too much for him to ignore.

Groaning, Soarin’ sat up and pushed his back against the headboard. It looked like he’d have to deal with this whether he liked it or not.

As he sat up, his stallionhood slapped wetly against his chest. It looked like he’d been leaking for some time now, even while he’d been asleep—the sides were coated in a thin coat of precum that he'd obviously been drooling as he’d slumbered. One glance to his left showed him just what he might have been thinking about in his dreams.

Rainbow Dash was fast asleep beside him. She had her hands curled under and over her pillow, and was hugging it to her chest. And what a chest it was.

A year ago, she’d been all but flat-chested. Soarin’ hadn’t fallen for her just for her body—though, to be fair, her lithe, athletic build and speed were usually enough to make any stallion swoon. A little one-year “anniversary” (they still weren’t married or anything; Pinkie Pie had just insisted that they hold a party and wouldn’t take no for an answer) present from Zecora had comprised a small, gift-wrapped bottle, a note, and a knowing smirk. It was only later when the couple had opened up their gift that they’d learned what it was supposed to do.

Zebrican fertility potions, it turned out, were extremely effective. Not only at what they were supposed to do—though they certainly did that as well, at least for one of them—but also at certain...well, side effects.

Where a pair of “breasts” barely bigger than an adolescent colt’s chest had once sat, now a pair of enormous, I-cup knockers pressed together on Rainbow Dash’s chest. They were absolutely massive—when she was sitting up, they hung down to the top of her stomach. While she was lying down, they squished against one another, uncountable handfuls of titflesh weighing upon the mattress. It’d been two weeks since they’d started growing, and one week since she’d given up on looking for a bra that might fit.

Just at the sight of them, Soarin’ felt his boner throb massively. Another glob of pre splattered against his chest. No wonder he was this hard—those pillows had been rubbing against him all night, teasing him, pressing against him, massaging him every time Rainbow Dash so much as breathed. He took a deep breath, closed his eyes, and took his shaft in his hands.

Hands—plural. At a length of twenty-one inches, Soarin’s stallionhood was absolutely massive—and that was just the shaft. It took both hands to hold, now, and with a girth of over four inches, he could just barely wrap his fingers all the way around. He grunted slightly at the contact, his palms running easily against the pre-dripping shaft. At least he wouldn’t want for lubrication—he’d always been a bit leaky, but these days, he made his own lube and more.

Peeking out under his eyelids at the still-slumbering Rainbow Dash, he told himself that he’d try not to wake her up. Rainbow could be grumpy sometimes when she was woken, and they’d been up late last night experimenting with their new sizes, anyway. Very late. Though from the heaviness and fullness of his balls, they hadn’t done enough experimentation yet.

His palms squelched against his shaft, his stallionhood throbbing as he pumped his hands up and down his length. Soarin’ groaned under his breath, feeling his balls churning between his legs. The potion had already helped him put on a bit of additional muscle mass, bulking up his thighs—and even those were being pushed aside by the swollen bulk of his nutsack. Each one was the size of a grapefruit—bigger, even. Somehow, though, he knew that each one contained far more cum than they appeared to.

He kept pumping his shaft. Grunts escaped him every so often—muffled, admittedly, though he couldn’t keep them down entirely. As normal as morning wood had been to him for much of his life, this was just something else. Something about this size, this buildup, this endless, mounting pressure—all of it just turned him on more than anything ever had before. He loved the feeling of his own virility, knowing just how big he was compared to most other stallions. The sensation of masturbation alone drove him crazy, his pleasure intensifying with each new inch his cock had added.

His breathing was growing more ragged. Sweat was starting to drip down his forehead. He’d barely been at it for thirty seconds, but he already felt ready to blow. Soarin’ just kept pumping, his monstrous shaft shuddering and lurching, his fat balls sinking into the mattress as they prepared for release. The pressure just kept growing, until, finally, he felt himself go over the edge.

It was less like a dam breaking than a thread snapping—a tiny, fine amount of control that just shattered beneath the roar of his oncoming orgasm. Soarin’ was just barely able to keep himself from moaning aloud, but his rapid breaths matched the tempo of his thundering heart.

Long, fat ropes of cum burst from his tip, each one nearly the size of just one of his normal orgasms—normal before he’d grown to this size, at least. His whole body jerked along with his tool, his muscles spasming as the overwhelming flood of his peak washed over him—as well as the rest of his room.

Fat globs of cum, erupting from his massive flare, went everywhere. Soarin’ was panting, his eyes rolling slightly back as his spunk coated the blanket, the wall behind the bed—even the ceiling. Ropes and ropes of his thick cream splattered against the surface and stuck. A good amount of it splattered his crotch and chest and face, matting his fur and leaving his coat damp, white, and sticky.

His whole orgasm lasted nearly twenty seconds, and by the time he came out of it, Soarin’ was groaning from exertion. He felt like he’d just run up a set of stairs. Hopeful to see his massive organ softening after that, he glanced down at his crotch—and saw a fat boner still staring back up at him.

He groaned aloud—then froze when he felt a hand on one of his balls.

“Morning, stud.” Rainbow Dash grinned ferally up at him, showing her teeth. She blinked a few times, some sleep still obviously stuck in her eyes. She’d stretched out one of her arms beneath her bust and his pillow, hugging his waist. Her other hand was laying right on one of his balls.

Soarin’ flushed. “Sorry for waking you up.”

“Meh.” Rainbow Dash licked a big glob of jizz from her cheek, and then swallowed. “There’re worse ways to wake up.”

She kept running her fingers over his nutsack, which felt no less full—and seemed no less big—from the products of his last orgasm. Soarin’ moaned softly as she skillfully massaged his throbbing nuts, their depths still sloshing with unspent seed.

He groaned again, leaning back against the headboard. “Mm. I just… Celestia, but I can’t help it. Every morning, I wake up, and it’s just—there. Bigger, and so hard—and it feels so good.”

“Mmff.” Rainbow Dash’s hand had moved up to the base of Soarin’s shaft. She gave it a squeeze, then shot him a lecherous look. “You can say that again.”

Soarin’ rolled his eyes. “Yeah, yeah. I know it’s hot. I just wish it’d go down after one orgasm.”

“Where’s the fun in that?” Rainbow pushed herself up into a sitting position. She curled one arm around Soarin’s shoulder, and had placed the other hand atop his erection. Soarin’s thighs trembled as she traced wide, lazy circles across the top of his flare, her fingers soon growing slick with his pre. “And besides. Maybe I can help.”

“Really? Even after last night?”

Rainbow snorted. “Please. Last night was just a warm-up. Somehow, I feel like today’s the start of the main event.”

“Well,” Soarin’ said, “given that I’m apparently a whole three inches bigger than I was yesterday...you may have a point there.” He turned his head, and gave her a big, goofy grin. “I really do appreciate it, though.”

“Oh, shut up, you sap.” Rainbow Dash leaned in and kissed him. Her bust squished against his pecs, a pair of soft, pillowy mounds that sank over his chest. When she pulled back, she was smirking. “You know I like it as much as you do.”

“Probably,” Soarin’ said. He was grinning all the same. Smacking his lips thoughtfully, he realized he could still taste the saltiness of his own semen on Rainbow’s lips. The thought just turned him on even more—he hadn’t even been aiming for her, and he’d still coated her face in his spunk. The thought of what he could do if he got even bigger…

His cock throbbed, and he winced. Right. Ginormous boner now, worry about ginormous-er boner later. If this particular boner ever went down, at least.

“All right,” he said. He shifted his sitting position, got himself comfy. “How’d you wanna do this?”

Dash just grinned. She hefted her tits, squeezing them between her palms. “Well,” she said, slyly. “I wouldn’t miss a chance to use these babies.”

Soarin’s cock throbbed. As Rainbow pressed her bust around his shaft, it throbbed again, splattering another glob of pre—this one, nearly half the size of his fist—against his chest.

Soarin’ groaned. Rainbow’s boobs were just so soft. They cradled his girth like a pair of warm pillows, surrounding his member with a tight seal of titflesh. His thighs locked in place as she began to move her massive jugs up and down his length, jerking him off with an almost lazy exertion.

Rainbow Dash smirked as Soarin’s moans became more apparent. “You like ‘em like this, don’t you?” she asked. She was grinning like a lynx.

“Yes,” Soarin’ gasped. His whole shaft was shuddering, lurching as a familiar pressure built up at the base for the second time that morning. “Very much so.”

“Don’t blame you.” Dash’s grin widened; the next time she squeezed her breasts down past Soarin’s ring, she leaned forward and lapped quickly at the bead of pre pooling at his tip. Soarin’ gave a muffled whimper, his hips jerking at the combined stimulation. Dash gave the side of one her breasts a squeeze, her titflesh overflowing the space between her fingers. “Ever since I got these, I’ve just been dying to use ‘em.”

Soarin’ moaned again. “I—can see why,” he bit out. His shaft was trembling, shaking, as the pressure built up. He couldn’t keep his load down any longer. His fat, cum-laden orbs were swelling, filling up with more and more spunk until they felt ready to burst. “Oh, fuck. Oh f-fu—“

He bit down on his lip, his eyes squeezing shut as his orgasm hit. His whole body jerked, thrusting his shaft upwards through Dash’s cleavage as the first ropes of cum splurted out.

Gobs of spunk rolled down the sides of his shaft, coating his nuts even as more and more ropes of jizz erupted from his tip. His fat, lengthy cock just kept flexing, erupting with cum. Soarin’ was whinnying, snorting wildly as he drenched the room with his seed.

Rainbow Dash was laughing, her mouth open wide, trying to catch as many falling globs of his spunk that she could inside. She kept kneading her breasts around his shaft, milking it for more and more cum. Soarin’ just kept groaning, his sixth load finishing and a seventh beginning soon after. By the time he recovered enough lucidity to move, he’d been cumming for a straight forty-five seconds.

Groaning, Soarin’ let his eyes flutter open. Most of him and Rainbow Dash—not to mention the room around them—was coated with a thick, sticky layer of white, heavily matting their fur. He groaned, pulling his head forward—and then realized that he was still cumming.

His shaft was still lurching, erupting with seed. Soarin’ eyes widened, and he made a half-hearted attempt to push Rainbow’s breasts from around his organ. “Holy crap,” he blurted. “Is this thing ever going to stop?”

Rainbow just grinned. “Keep cumming for me, buddy. Gotta paint the room white.”

“I—guh,” he grunted, slinging his legs over the side. “Gotta—get to the bathroom.”

Soarin’s feet hit the carpet, his still-heavy balls slapping against his thighs. He was still cumming as he (rather unsteadily) got to his feet, his whole body trembling with the continuing force of his orgasm. As much as he loved his longer orgasms, this new length was starting to scare him—and he didn’t want to paint the whole room white, anyway, no matter what Dash said.

He walked—or rather, waddled—toward the bathroom, his massive cock bobbing and swaying from side to side with every step he took. Every other step, it’d lurch, splurting out a new glob of cum all over the carpet below. Each one was easily a cupful of spunk, white, thick, and full of virile stallion musk. It was enough trouble just keeping his body under control. Soarin’ wanted nothing better to do, as he dragged his spasming erection across the room, than to just lie down on the floor and keep jerking off until his orgasm ran its course. But there was just so damn much!

He slammed the bathroom door open, his chest heaving. Behind him, Rainbow Dash was cackling. “Aw, c’mon!” she called from the bed. He glanced back at her and almost wished he hadn’t—the sight of her bare breasts, each one nearly the size of her head, combined with her extremely naked, extremely stiff nipples, sent his shaft spasming again. A fresh load of jizz erupted from his shaft, splattering against the side of the bath.

“Nnff,” he grunted. He was panting. “Gotta—get—to the toilet.” With some difficulty, he managed to lunge across the room—just in time to aim his copious manmeat just over the mouth of the toilet bowl. His next load filled the bowl with white, with barely a drop leaking onto the floor. Soarin’ shoulders relaxed, the tension fleeing them.

He kept cumming, though. It’d been more than a minute since he’d started, and he still felt like he was going strong. One look back at the room would have shown that he’d spilt gallons of the stuff now—and that was with his balls “only” the size of cantaloupes. For all he knew, he was still growing—and the possibility of more both terrified and excited him.

Soarin’ grunted when he felt Rainbow Dash squeeze his shoulder. “Heya, stud,” she murmured in his ear. She wrapped one hand around his waist and squeezed the inside of his thigh. The back of her hand slipped just beneath the weight of his fat nutsack. He could feel her grinding her crotch against his bare, lean ass. “Still goin’?”

“Nnggh.” Soarin’ groaned, his cock spitting out another wad of spunk into the bowl. “There’s just...so much.”

He heard her chuckle. “Maybe I can help finish you off,” she said.

In a swift, fluid motion so much like her flight through the air, she slipped around him, lifted her leg, and slid it down his spasming shaft. He’d somehow managed to point it down toward the toilet bowl—thank goodness for small favors, at least—so she had no trouble sliding her thigh down beside his girth, then bringing her other thigh around the other side.

And what thighs they were. Her breasts weren’t the only thing that had been affected by the fertility potion. Rainbow Dash’s legs were a magnificent spectacle. They touched, almost to her knees, any semblance of a thigh gap completely lost. Her hips were as wide as her shoulders, and her butt jutted out a good four inches behind the rest of her. Her thighs, when flexed, bulged thickly, but jiggled when she walked. Regular pants hugged her curves, just barely containing them; tight pants wanted to burst around them, her thick, bountiful legs eager to rip right through.

Soarin’ gasped as Dash straddled his cock. She’d squeezed it with her thighs, jerking him off by flexing her thighs and ass repeatedly. She was humping his length, which stuck between her fat thighs and pushed out beneath her ass. Every time she humped him, grinding his girth along her marehood, her breasts bounced and smacked against her chest. Every thrust of his hips between her legs sent her ass wobbling, and his own shaft spasming with another burst of jizz.

Breathing heavily, he groaned, “Oh, fuck. Oh, fuck. Oh fuck.”

The sensation of Dash’s soft thighflesh around his girth did the trick. With a primal roar, Soarin’ mighty organ contracted—and then flared impossibly wide, rocketing a half-gallon wad of cum right into the middle of the bowl. His cum was overflowing the sides, running off to the floor. A hefty puddle of thick, creamy white was spreading across the tiles, getting wider by the second. Soarin’s moans went high-pitched, and he found himself nearly squealing from pleasure as Dash’s plump thighs milked every last drop of cum from his orgasm.

When his cock sputtered out the last of his load, Soarin’ slumped forward, his chest heaving. Rainbow caught him, hugging him close to her chest and taking his lips in her own. He returned the kiss hungrily, their tongues dueling, pushing past each other’s lips. He tasted himself on her lips, savored it, swallowed it. The contact restored some energy to him; by the time he pulled back, he felt a lot less exhausted, and a lot more awake.

Rainbow Dash slid her hands down to his waist. His hips weren’t anywhere close to the size of hers, but his body had thickened a bit, his Wonderbolt’s six-pack becoming a bit more prominent, his butt cheeks poking out into the beginning of a bubble butt. She grinned up at him, giving his ass a squeeze. “Morning, stud.”

“Morning to you, too.” Soarin’ leaned over, kissed her again. She returned it, though with a somewhat more subdued feeling. The hunger was still there, though, burning beneath the surface. “Wow. Is that gonna happen every morning from now on?”

“Maybe not every morning.” Dash grinned at him, running her finger down his chest. “But I say we appreciate it when it happens. Felt good, right?”

“Oh, yeah.” Soarin’ inhaled. He shuddered with pleasure. “Definitely. There was just...so much.”

She smirked. “And may there be more to cum.” Her hand trailed down to his crotch, gave the base of his shaft a squeeze. Soarin’ gasped, his breath catching in his chest.

“Y’know,” Dash purred. “Seeing you messin’ up the room like that—kinda turned me right the fuck on. What do you say to a round two?”

Soarin’ glanced around the bathroom. The walls in here were mostly clean, at least, but the floor was rapidly becoming covered with the puddle of his spunk. And the two of them were still covered in his jizz, white splotches sticking out all over their coats.

“Well,” he said, glancing toward the shower. “My balls still do feel kinda full.”

Dash gave one of his balls a squeeze, the plump, cum-laden orb sloshing in her grasp. Soarin’ gasped again. “Now that’s the spirit!” Dash said.

Fitting into the shower together was...well, not quite difficult, but not exactly easy, either. Between Soarin’s broad shoulders and Rainbow’s broader hips, there wasn’t a whole lot of extra space to get clean. Since Rainbow had moved in with him, Soarin’ had been getting used to the reality of fitting two overendowed athletes into a single bachelor’s pad. As a Wonderbolt, he wasn’t exactly poor, but he’d never really spent more than he needed. Then again, for Rainbow...it might be worth it.

In the meantime, though, he liked being crammed into the shower with her. No matter which way he moved, he could feel her: her breasts, squishing against his chest; her thighs, rubbing against his own; her toned, cum-sticky tummy, depressing slightly beneath the force of his stiffening erection.

Rainbow gave a surprised gasp when he turned the water on—she was used to cold showers, but tended to expect at least some warning—then moaned as the condensation turned to steam. The water, hot and soft, streamed down her chest in rivulets, filling the space between her cleavage with a running river, and beading on her areolas.

Dash smirked as she traced her fingers down his chest. Behind her, her damp wings were stiffening with obvious arousal. “So, stud,” she purred. “You ready to wake me up properly?”

His stallionhood was already fully hard again. It’d pushed between her legs, pushing her thighs away as it stiffened. Soarin’ just nodded, then gasped when he felt her squeeze his balls. They were already halfway full again.

He groaned as Rainbow grinded her pussy lips against his girth. “C’mon, Soarin’,” Dash said, grinning. Her breasts shifted across his chest, her wet asscheeks smacking together as she twisted her body against his. “Y’know you want this. I know you do.”

“Welp.” Soarin’ swallowed. The rush of blood through his cock—his massive, impossibly hard cock—drowned out all other rational thought. “I—”

“C’mon!” Dash urged. The steam condensing around her, the water trailing over her curves, made her absolutely irresistible. “Fuck the shit out of me!”

He didn’t need to be told twice.

She squealed with delight when he pushed her against the tiled wall—not roughly, but firmly enough that her breasts bounced on impact. She gasped as he lifted her off the shower floor, his new, bigger biceps flexing to twice the width they’d been just two weeks before. Soarin’s chest bulged, his shaft leaping to attention as Dash’s puffy marehood was finally opened to it.

She squealed again, her legs writhing in obvious pleasure, as he entered her. She’d been tight to him the day before, but her body was changing in other ways, too. She was widening for him, taking more of him in—so that he could fill her further. Soarin’ was absolutely overcome by the sensation, his incredible lust more ruling him than he ruled it as he rutted Rainbow Dash, her whole body bouncing up and down on his cock as he pushed himself inside her again and again.

“Yes!” she cried out. Her massive breasts bounced against her chest, her nipples long and stiff and aching. “Yes!” she moaned, as Soarin’ hilted his length inside her and reached around to kiss her, fondling her breasts madly as his balls pumped more and more precum inside her marehood, his one arm holding her whole body up as easily as he might a foal.

“Yes!” she squealed, her whole body twisting in his grasp, as his thrusts came to a peak. The hot water running down his shoulders, the steam flooding his lungs, the sensation of Rainbow’s soft asscheeks folding over his abs—it was all too much. He was going over the edge, toppling over just as surely as she was.

His shaft flared, pumping pints of cum into her before it became clear that even that wasn’t enough. Rainbow’s legs, spread wide, let some leak out of her, even with Soarin’s increased girth. Still, even though enough spooge splattered onto the tiled shower floor to fill a large bucket, there was still a noticeable bulge in her cum-bloated belly as Soarin’ let her down to the ground.

Rainbow Dash was breathing hard. “F-fuck,” she panted. He couldn’t tell whether that was sweat on her chest and forehead, or water. Probably both. The shower was already washing away the sweat, mixing it with his seed in the basin below. “Fuck.”

“Maybe not every morning,” Soarin’ gasped. He felt himself going soft, slipping out of Rainbow’s cunt. Buckets of jizz poured forth from her snatch as the seal was lifted, though the bulge in her belly went down only a little. “That’s what you said?”

Rainbow whirled, pushed him against the wall. “Fuck that,” she said. “I want this twice a day.” And she kissed him, long and hard and hungry.

It was only when the water began to pool up around their thighs, then, that they realized that the drain had become clogged too.