Alvin tilted his head back, panting hard as a smile formed across his face, laying back against his bed's headboard. His paws were down between his legs, one pumping up and down his length and squeezing it softly while the other fondled his heavy, furry balls.

He kicked his foot once, moaning out again as he reached his peak, the milky white warmth of orgasm splattering out onto his exposed tummy and his fuzzy crotch, making his toes curl from sheer pleasure.

His stupor was shattered when he heard the door opening, leaving him completely exposed to Theodore before he could hide.

"Gah! T-Theodore, what're you doing in here!?" Alvin snapped, squirming a little as he rolled onto his belly in an attempt to keep himself hidden. "I thought you were taking a bath!"

"I… I just came to get my soap… What're you doing to your weenie?" Theodore squeaked out. "And why is there milk on your belly?"

A wave of relief flowed over Alvin, different than his ruined afterglow. He didn't know what he was doing. "Hmmm… Hey, Theo. Come on over here." He says. "I'll tell you why, if you promise you won't tell Dave~" Alvin cooed, playing on his little brother's eagerness for the unknown.

As Theodore made his way over, Alvin scooted to the side. Anything to keep himself out of trouble.

Theodore tiptoed up the staircase, moving as quietly as possible. Dave was asleep at his piano downstairs, having spent most of the night trying to write a new song. Simon was probably still in the basement. He himself had fallen asleep on the couch the night before.

"Alvin? Aaallviiin?" He called softly, peeking into their shared bedroom. "Alvin, are you awake? My thingy is all hard again and-"

He paused, biting his lip. A snore rang from Alvin's bed.

Pouting, Theodore made his way over, unzipping his onesie as he climbed up on Alvin's bed. Careful not to make any sounds, Theo moved closer to the slightly moving lump under the blanket. "Alviiin..." he called, gently shaking his sleeping brother.

No dice. Alvin remained asleep.

Theodore sighed, gently sitting down on Alvin's thighs as he looked down at his length. It'd been stiff since earlier that morning, and Alvin never really showed him how to tend to himself.

"Okay… so his paw was like this…" Theodore mumbled to himself, leaning back a little in order to grab his small length, only the head peeking out from his paw now. He bit down on his lip and started to rub it, going nice and slow as he looked to Alvin's sleeping face. Even with the snoring, he just looked so peaceful.

"O-Oh gosh… there it is…" Theodore moaned softly, arching up his back. His free paw went up to his chest, lightly teasing at his nipple by tugging it. Precum was already dribbling out of his tip, the foreskin gliding back and forth with his paw's motion.

Good thing he had found Alvin doing this! Who'd've thought you could have this much fun on your own?

Moaning out again, Theodore scooted himself closer to Alvin, his rump resting right over Alvin's hips, the most comfy spot he could find. Theo giggled, feeling a familiar push against his butt.

"Hehe… Naughty dream, right Alvin?" He asked, knowing he wouldn't get an answer. He wriggled his hips a little, gaining a moan from Alvin as he kept stroking himself off.

"B-Britt…" Alvin moaned, moving a little in his sleep, eyes fluttering a bit as he started to wake up.

Instead of his crush, however, he saw his baby brother's little shaft, a squirt of precum hitting his face.

"Wh… Theodore…? What time is it?" Alvin groaned, starting to rub at his eyes.

"Oh, you're awake now! That's good, cuz I kinda forgot how to do this on my own," Theodore responded. "But, I think I'm doing it right?"

"Theo, you're getting pre all over my blanket!" Alvin groaned. "This'll be the third wash this week…" he huffed, slowly sitting up in bed, hugging Theodore close. "Now move your paw. Big bro's got this." Smiling, Theodore moved his paw away, giving a cutesy smile as Alvin took hold of his shaft.

"Hehe, sorry, but it was just so stiff this morning~" Theodore says softly, gasping as he wrapped his arms around Alvin, squeezing him firmly.

His own paw felt nice, but there was something about how Alvin gripped him that felt much, much better. Theodore tilted his head back, bucking his hips lightly against Alvin's hold, the motion causing him to also grind his rear against his brother's bulge. "Oohh… A-Alvin, it feels amazing…"

"You say that every time, Theo." Alvin points out, grunting as he forces himself on his knees, wrapping Theodore's legs around himself as he continues stroking him off, now lightly humping against his covered bottom.

"Aaah.. But-but I mean it every time!" Theodore squeaks, blushing as he nuzzles into Alvin's neck, breathing in his scent while he swung gently from the force of Alvin's thrusting. "Besides… you're having fun with my butt again~"

Alvin just growled softly, his free paw going down to grasp Theodore's butt, holding him steady as he kept humping against him. The friction was enough to suffice actually being inside of him and had caused his already noticeable precum stain to grow larger. "Well someone decided to come and interrupt my Brittany dream."

Theodore poked out his tongue, his cheeks darkening as he tightened his hold on Alvin's body. "Aah… T-Then why not act like I'm Brittany?" He wiggled his butt around, teasing as he rubbed his rear cheeks on Alvin's stiff bulge. Alvin's resulting growl made Theodore smile. "Aww, c'mon… You know I like making your white stuff squirt out your weenie..." Theo hummed, before leaning over to lick Alvin's neck softly.

"Gnnnh… T-Theo, you're gonna make me wanna actually take you. Especially with you talking all cutesy like that." Alvin warned, his hold on Theodore's butt getting firmer as he humped against his rear faster, the precum starting to smear along his baby brother's butt.

The thought made Theodore pause for a moment. What did that mean? He pulled back, looking Alvin in the eyes. "Uh… Alvin? How can you take me if I'm right here?" He asks, giving his nose a soft lick.

With a roll of his eyes, Alvin suddenly pinned Theodore on the bed, raising his legs up and wiggling out of his pajama bottoms, his cock springing free, the foreskin pushed back enough to reveal the precum covered head. "You'll find out if you try sneaking in on me again, Teddy." He warned, grinding firmly against his rear.

Theodore gulped. Being forced under Alvin like that… having to look him in the eyes as he did naughty things to him… He blushed heavily, watching his length pulse and throb with excitement, precum leaking onto his exposed belly. "But what if I wanna find out now?" He questions, giving his hips a little wiggle.

Not answering, Alvin instead looked towards their door. Locked. Theo must've thought ahead.

"Hmm… If I tell you, then you have to stay quiet about it, ya hear?" Alvin said, grabbing Theodore's cheeks to make their eyes meet. "Mmhm! Mmhm!" Theo nodded, squirming a little in Alvin's hold. "It'll be our little secret!" He tried to say, coming out somewhat muffled.

"That's my little chubster." Alvin says, patting Theo's rear. "First things first, lose the pajamas. Right now."

Theodore giggled to himself as he nodded his head. Standing up on the bed, the little chipmunk slowly slipped out of his onesie, letting it fall to his feet. He was proudly revealing his pudgy form to Alvin, his length standing stiffly as it let out a drop of pre, landing right on the blanket.

Alvin wrinkled his nose a little, but then gave a grin. Even he couldn't resist being aroused by the sight of his baby brother, nude and plump with baby fat. Already his length was starting to stiffen. "Hmm. We'll try something new this time." Theo watched, curious as Alvin crouched down, positioning himself right up until his nose touched Theodore's length. "Now… You just… Hold your breath or something. Try not to squeal."

Before he could ask, Theodore had let out a loud moan, his back arching up as he felt his tender balls disappear into Alvin's warm mouth, his tongue rubbing against them firmly. He went quiet when Alvin growled at him, giving a firm glare. Theodore nodded, covering up his mouth to hold in his eager moans while he tried to stay on his feet.

"Mmmnh… Oh, A-Alvin…" Theodore reached down to take hold of his length again, focusing his rubbing at the sensitive head.

"Attaboy, Teddy. Nice and quiet." Alvin encouraged, pulling off of his balls and grabbing Theo's length firmly, giving it a harsh squeeze at the base to make him squeak. "Now we're gonna make you as hard as we can." He says, giving the head a few eager sniffs before letting his tongue slide over it, entranced by the light scent of musk that Theodore had. Of course, most of it was more like the green apple soap he used to clean himself, but it made for an interesting scent.

With a light huff, Alvin effortlessly took Theodore's whole length into his mouth, gagging slightly as he went straight to the base, moving a paw around to grasp Theo's plump, jiggly rear. With a simple back and forth motion, he set the pace for him to move, making Theo hump his mouth.

"Aaah…" Closing his eyes, Theodore fell into place soon enough, putting both of his paws down on top of Alvin's head, holding him there as he kept humping forward, wincing visibly as his big brother licked at his pee slit, making his precum begin to spurt out softly. "You're gonna eat up my thing…?" Theo managed to ask, peeking down at Alvin curiously.

"Gmmf. Not eating. Just sucking." Alvin answered quickly before going back to work, this time taking Theo's balls into his hold, squeezing and tugging on his precious jewels as gently as he could while his tongue traveled up and down his thick shaft.

Theodore closed his eyes, trembling as he grasped fistfuls of Alvin's hair, trying his best to continue moving. The weird feeling of Alvin's tongue was a wild, pleasurable one that made him want to keep himself in his big brother's caring mouth forever! Each suck sent a shock of bliss through his body, forcing out his cute moans of appreciation.

"A-Alvin…" Theo whispered, "you think I could try sucking on your weenie afterwards?"

His big brother pulled away for a while, leaving a thin trickle of drool hanging from his lips. "Hmmm… Maybe later, okay? Right now, I want a taste of your milk."

"My milk? H-haahh…" There was no time to ask further as Alvin went back at it like a hungry puppy, eager to get his fill. This time, Theo had to bite down on his fist to keep the louder moans that were fighting to spill from his gasps - Alvin was just too good!

"Mmmff… Mmm-hmm!" was all Alvin could say, muffled by his mouthful of shaft. The more he sucked, the more Theodore could feel a wave of pleasure… it was building harder and harder, surging in between his own legs and right up his crotch.

"Alviinnnn…" he whimpered, grabbing harder onto his brother's hair now.

"Heh. You really wanna try me too, huh Teddy?" Alvin asked, pulling back again. "Yes! Yes please!" Theodore answered, practically bouncing on the bed. "I wanna try your weenie milk!" His eager tone made a grin come to Alvin's face, along with the silly term. Deciding to not correct him, Alvin laid down on his back, beckoning to Theodore. "Okay then. C'mon, Teddy. Lay on top of me."

Almost immediately, Theodore was down on top of him, wiggling his butt eagerly as he pressed his lips against the side of Alvin's shaft in a soft little kiss, groaning softly as he took in the scent.

"Grrf! Okay, Theo, calm down." Alvin told him, gently grabbing his rear and holding it up, leaning a little closer in order to kiss Theodore's tip before engulfing it again, suckling away on his little brother. That caused Theodore to arch his back, moaning out once more as he clamped his thighs around Alvin's face, thrusting down to his mouth. "I-I can't! Your mouth feels great on me!" He squealed out.

Huffing, Alvin closed his eyes tightly, letting his tongue twirl around Theo's cockhead. "Mmrf. Then you'd better get your mouth down on me." He says, thrusting his hips upwards. With a squeak, Theodore's eyes went wide as half of Alvin's shaft went into his mouth, jabbing at the back of his throat once. He gagged softly, but hooked his claws into the bed below, trembling all over. Alvin had a strange taste… A weirdly satisfying musk-like flavor that washed over his tongue. Shuddering more, Theodore put his paws down on top of Alvin's hips, pulling back in order to copy Alvin's actions, lapping all over his big brother's tip hungrily.

"Haaah… Just like that, Theo." Alvin cooed, caressing Theodore's butt rewardingly. "Keep that up and you'll get my milk~" he says before planting a firm kiss right on Theo's balls. Hearing the praise colored Theodore's cheeks a noticeable light red, making him close his mouth around as much of Alvin as he could manage, his nose lightly pressed against Alvin's balls as he went to suckling as hard as he could. The precum oozing from Alvin's shaft only urged him on more and more.

Suddenly, Theodore had nearly collapsed on top of Alvin, moaning loudly around his length. His body quaked in orgasmic bliss as he struggled to keep his eyes open. Touching himself, having Alvin do the same, and now being surrounded in the wet warmth of Alvin's mouth was all too much for him, forcing him into an unexpected climax, his shaft flexing against Alvin's tongue with each spurt of his "milk".

Down below, Alvin huffed as he drank down each ribbon of cum Theodore gave, even taking the time to lick his slit over and over until it was nice and clean, slowly releasing the softening shaft with a "pop". "Gah… Someone's a little sweet, isn't he?" Alvin commented as he wiped his mouth clean. He sat up, causing Theodore to roll off of him, letting out a pitiful groan as he pawed at Alvin's thigh. "I-I didn't get my drink…" he managed to say.

"Relaaaax, tubby." Alvin said with a grin, gently patting his head. Humming lowly, he propped himself up and sat against the bedpost, spreading his legs and beckoning to Theodore. "Come on. Get your butt up here." Alvin orders. Blushing brightly, Theodore does as he's told, huffing as he adjusts himself. He put his knees on Alvin's shoulders, carefully balancing himself as he positioned his rump to be in Alvin's face. The position had him face to face with Alvin's pulsing length again, and Theodore couldn't help but drool.

Meanwhile, Alvin had a perfect view of Theodore's fine, curvy rear end, squishing his cheeks a little. Sure, he wasn't Brittany, but darn if he didn't look good! With a grin, Alvin pushed his way back into Theodore's mouth, letting out a satisfied groan as he traps Theo's head between his thighs. "Suck on it, Teddy~. Big brother Alvin is gonna fill your mouth with his warm milk!"

Theodore, with his cheeks squished up by Alvin, grunted softly as he continued his desperate suckling, grasping at Alvin's thighs. He couldn't help wiggling his rear nervously. Why was Alvin so focused on his butt…? "Hmmnph!" He squeaks, eyes widening before drooping a little. Alvin had dragged his tongue over his hole, making Theodore shiver once again.

"You like that?" Alvin called out. Theodore hardly had time to reply when he felt Alvin's tongue slither and swipe over his rump and in between his cheeks. It felt wet, warm and oh so awesome!

"K-Keep licking, Alvin…" he begged.

"Only if you keep up at your end, baby bro," cooed Alvin.

Two can play at this game, thought Theodore. He picked up the pace, using his tongue and every muscle in his jaw to suck harder on Alvin. In fact, he could even pretend he was sucking on a lollipop!

So… he did.

Theo made sure his lips were sealed firm to Alvin's throbbing length, scooting his rear even closer to Alvin's face before deepthroating his brother, nose stuffed to Alvin's furry balls as he took in every last inch.

Hearing Alvin moaning against his rump made Theodore fight to keep Alvin in all the way, not letting his brother's length go free for a single moment. It was pretty nice when Alvin's tongue ended up squirming up against his inner walls, especially when he ended up clenching~

"Nnnmph… Theo, don't stop… I'm about to pop~!" Alvin warned.

Theodore grabbed Alvin by the thighs, squeezing them together as he suckled on Alvin's cock harder, relishing in his brother's desperate moans as the rush of "milk" flooded his mouth. Warm, plenty sticky, and with the slightest hint of a sweet flavor mixed in with the salty taste, it sent shivers down Theo's spine to finally have his drink, gulping down each drop with audible leisure.

Alvin was left panting for breath, resting his head against the back of his bed as afterglow quickly took hold. Having Theodore suckling him even after the spurts of jizz stopped left his head spinning. He eventually had to push the butterball off of him, making Theodore whine pitifully as he tried getting his treat back.

"Heeeey! I earned it!" Theodore said with a pout, crossing his arms as he glared at Alvin.

"You just drank everything I've got! I think you even started drawing out more pre!" Alvin huffed back. "Lemme catch my breath first."

Begrudgingly, Theodore did just that, nodding his head as he listened in on Alvin's rapid breathing. As soon as Alvin's breath was back to normal, Theo was trying to get at his length again, only to have his face nudged away.

"Ah ah ah… I just tasted you, and you just tasted me. Now you're gonna get the rest of the experience." Alvin said. Before Theo had the chance to protest, Alvin had him laid out on his back.

"The r-rest?" Theodore squeaked out. Alvin's gaze loomed over his chubby body like a hungry hawk, taking in every little detail of each curve of his body, no doubt. It made him squirm a little, but Theo made himself stay exposed for his brother. Then, his legs were brought up high until they dangled overhead, forcing Theo to look up as Alvin mounted him.

"Oh yes. The rest, Theo." Alvin replied simply, putting his hands down on Theo's legs for support while he poked against his back entrance with that pulsating shaft. "Don't scream or else they might hear," he warned. Theodore gulped and nodded his head as best as he could, covering up his mouth as he felt the tip of Alvin's length pushing on his tender tailhole.

Slowly, and taking every moment to be as gentle as he could, Alvin slid his cock all the way in.

Alvin let out a loud huff of breath as he pushed himself right to the base, Theo's tight hole clenching around him again and again. "Aaaah… I love your butt, Theodore!" Alvin growled in bliss, squeezing Theo's thighs while he stirred his hips a little.

"Uh t-thanks?" Theo squeaked, his toes curling as he watched Alvin above. It felt pretty weird having Alvin just…wedged inside. But when he started to thrust his hips, Theodore yelped and even squirmed against the bed, the new sensation of pleasure causing his little shaft to spring back to life. Alvin was quick to grab it again, pointing it down to Theodore's face.

"Mmmf… Gonna make sure we don't have too much of a mess." Alvin panted, his hand pumping away at Theo's cock while he got into a rapid rhythm of rutting.

Theodore wasn't sure which he enjoyed more - the firm, tender grip of Alvin pumping away at his cock, or the growing sensation of bliss as he continued to thrust and buck. Already Theodore's tongue was lolling out, panting as he took it all in like the good baby brother he was.

"Gosh, you look so cute!" Alvin groaned. He picked up the pace, going full speed with his cock buried deep into Theo's walls. "Do you… do you want me to keep on going?"

But Theo would have said yes anyway - his moans were answers enough. Alvin had to pause a moment to gently put a paw over Theo's mouth. Bending over, he swiped his tongue across that delectable tummy. Tasting the sweat that lingered on his baby brother's chubby body, his warm, buttery scent and even hearing the muffled, yet pleasurable mewls that escaped Theodore's lips.

Alvin was driven by a sudden urge now. To finish right then and there, hilting his cock all the way and giving his baby brother the best climax he'd ever experienced. He could feel the pressure building up from his balls, every second giving him an excitable wave of tingles as he continued to thrust.

"Alvin… Alvinnnn…"

"Y-yes, Theo?" He took away his paw, watching every minute detail change in Theo's face.

"I… I feel like I'm gonna pee~"

Alvin rolled his eyes, an amused smile on his face as he shook his head. "That's your milk coming out, ya little dummy. Don't hold it back!"

Theo let out a little giggle as he nodded, then moaned as he felt Alvin's tip drive just a tad deeper, sending a sharp shock of serene pleasure up his back. Before he could even moan in response, Alvin had struck that spot again and fed him the same blissful rush. "Aaahh… Alvin, it's gonna…!" Theo hooked his claw into the bed below as his shaft went into little spasms, squirting his hot "milk" all over his own face as well as his chest.

All the while, Alvin didn't let up on his thrusting, savoring all of Theo's cute little moans as he creamed himself. "Grf… M-My turn!" Alvin grunted as he hilted in again. This time, the peak came, and it hit hard. Alvin threw back his head, gasping as he unloaded all the way. He felt his warm thick spunk, spurting and filling up right inside of Theo's clenching hole.

The afterglow settled in not too long later, leaving both munks panting away. Alvin eventually pulled out to let Theo lay on his back, now hugging his baby brother close.

"We've… we've never done that before." Theo squeaked out, scooting closer to Alvin's hold. "Your milk feels all weird in me."

"Then we'll have to clean you up soon, huh? Scoot your butt up as soon as you can." Alvin said.

Theodore waited a few minutes more, but then he crawled up the bed until his rear was facing Alvin, a fresh blush on his cheeks as he felt Alvin's paws spread apart his rump. Though the real embarrassment settled in when Alvin's tongue began to lick away at his hole. Theo bit his lip and squirmed, letting out a little moan as he gripped at the bed some.

"Mmmf. Hold still." Alvin ordered in between licks, rasping his tongue into the mess of his own seed, giving his baby bro a thorough cleaning before eventually letting him go free. "There. That's the most of it. Now ski-daddle so I can get back to my Brittany dreams." Alvin said with a wave of his hand.

Hearing that made Theo pout. Instead, he turned and laid his head on Alvin's chest. "B-But… It's still early! Everyone else is still asleep! Can't I just lay here for a while?" He asked, giving Alvin his best puppy eyes as he pleaded.

"Hrrf, Theo… You make it hard to say no, you know." Alvin said as he rested his head back on his pillow. "Just... don't try anything funny and we're in the clear, okay?"

Theodore nodded his head eagerly, hugging his brother nice and tight. "I promise! I'll be plenty good!" With that, he contented himself with listening to Alvin's heartbeat as he watched his brother slowly return to sleep.

A/N

So, uh... this document was apparently over a year old, and me and Wind didn't even complete it for post before. So, yeah. Here you all go! We finally finished it! Hope you enjoyed.

KRS, Out!