Yakko twiddled his thumbs as he laid in bed and thought about what had just transpired a few hours ago. He couldn't get his mind to stop racing as images of Wakko straddling his lap filled his mind. The chills it gave him when Wakko put his hands on his waist, the intense butterflies he felt when he looked into his brothers eyes, and the sparks that flew when he kissed Wakko's soft, supple lips - it was all so much for Yakko to comprehend.

After they had finished "practicing", the day went about as it normally would. With Dot gone at a 'girls week' retreat with Babs and other girls her age, the two boys spent the rest of the night watching TV and pretended as if nothing happened. Wakko seemed to not care, but Yakko, however, couldn't get it out of his head.

The experience ended up being much more impactful for Yakko. He felt extremely awkward around Wakko at first, but soon that awkwardness was replaced with infatuation. He took notice of his brothers mannerisms; the way Wakko walked, talked, and generally behaved. He also took notice of his body for the first time - the softness of his fur, the way he was only just a little bit shorter than Yakko, and the chubbiness of his belly and hips that Yakko found extremely enticing and adorable. He was almost feeling attracted to Wakko in a way that he knew was wrong but was simply unable to control, especially after their little "kissing lesson".

When Yakko kissed Wakko goodnight, he made the kiss linger slightly longer than he usually does. If it was his choice, he would have gone for another kissing round right then and there, but he was scared that he would make Wakko uncomfortable. After all, their make-out-session was just supposed to be a "teaching experience".

Yakko rolled over in his bed and tried to squeeze his eyes shut when he heard a soft, accented voice coming from outside his closed bedroom door.

"Hey, Yak?"

Yakko sat up in his bed and pushed all the wrong, dirty thoughts of kissing his brother out from his mind.

"Can I come in, Yak?"

"Of course!" Yakko responded more enthusiastically than he intended.

Wakko slowly pushed the door open and shyly crept to the side of Yakko's bed; an expression of shame and sadness was etched on his face.

"Is everything okay?" Yakko's words were caring in a sweet, brotherly sort of way.

Wakko shuffled his feet as he started to choke on his words, anxiety creeping its way into his tone. "C-Can we talk? About what w-we did?"

Yakko's eyes widened and he felt his heart-rate increase. He knew this talk would happen eventually, but he had hoped they could ignore it for at least a few more days. He scooted over in his bed and made room for Wakko, who steadily climbed in next to Yakko who was now sitting up against the headboard.

"W-When I asked you to t-teach me to kiss, I d-didn't-" Wakko's eyes started to glisten as he spoke the first words.

Yakko put a comforting hand on Wakko's shoulder as he interrupted.

"Hey, bud, it's okay. We kissed. It's no big deal. I've kissed you several times throughout your life." Yakko spoke with confidence, pretending as if it didn't matter to him.

Wakko felt his cheeks turn red as Yakko spoke and the embarrassment of the situation started to hit him.

"But we didn't just kiss. We made-out!" Wakko's words were filled with emotion as his voice got slightly louder. His tone was that of embarrassment and shame rather than anger.

"Okay, and?" Yakko turned towards Wakko and grabbed his hands. "Did it hurt you? Did it hurt me? Last time I checked, all that happened is you learned how to kiss and I got some sugar from my lil' brother!"

Yakko smiled when he saw Wakko hold back a giggle.

"And let me tell ya, you got pretty good at it by the time we finished!" Yakko spoke in an exaggerated tone that made Wakko smile.

Yakko felt his heart-rate pick up as he made eye contact with Wakko who was sitting across from him with bright, beaming eyes and a goofy smile. He squeezed Wakko's hands as he continued to speak.

"So please, Wak, don't feel bad. It wasn't gross. As a matter of fact, I really enjoyed it."

Wakko's eyes widened. "You... enjoyed it?"

Yakko felt a lump in his throat and butterflies in his stomach as he realized the revelation he had just made - confessing that he actually enjoyed making out with his brother. He gulped and let go of Wakko's hands as he felt himself sweat with anxiety.

Before Yakko could respond, Wakko got on his knees and leaned in, giving Yakko a gentle, sweet kiss on the lips.

Stunned by the display of affection, Yakko was at a loss for words. He tried to return the kiss, but ended up just sitting there as Wakko gave him the sweet little peck on his lips.

"Yak..." Wakko stayed on his knees as he leaned just inches from Yakko's face. "I really liked it, Yak. Kissing you..."

Yakko snapped himself out of his state of shock as he realized what was happening. His brother leaned inches away from him after leaving a soft, affectionate kiss on his lips. Yakko couldn't help but smile; seeing Wakko open up to him like this made his heart melt with love.

Before Wakko could say more, Yakko grabbed him by the waist and pulled him close. Their noses touched as the two boys smiled at each other with a sly grin that indicated their desire to make-out once again.

"If you liked it, then maybe you should do it again..." Yakko's tone was flirty and sexy in a way he had not been with his brother before.

Before Wakko could respond, Yakko pulled him into a deep, loving kiss. Wakko let his body melt into Yakko's arms as he used all the techniques he had learned from his older brother; the tongue, the wandering hands, and the romantic tension all combined to create a kissing experience that made Yakko very hot under the collar.

The two boys lovingly continued to make-out in such a way that they couldn't help but make noise and be a bit sloppier. The taste of Wakko's tongue as it explored his brothers mouth made Yakko's desire for him even stronger. His hands made gentle, long strokes from Wakko's neck down to his waist, giving him chills as they leaned in to each other and fell into a laying down position with Wakko straddling on top of Yakko.

Yakko couldn't help but notice the way that Wakko was unintentionally dry-humping him as they continued to kiss. Yakko was already feeling hot and bothered by the sexual nature of the situation, but the way Wakko was gently grinding on him drove him crazy. He cringed as he felt an erection begin to rear its ugly head.

He tried to ignore the boner that was forming by focusing more on Wakko's lips and taste rather than the way he was grinding on him. He slipped his hands under Wakko's oversized plaid pajama top and made long strokes across his smooth, soft fur. He wrapped his hands around Wakko's waist and playfully squeezed the chub on his love-handles, causing Wakko to squeal before immediately returning to Yakko's lips.

The two brothers spent a few more moments passionately kissing each other before breaking it off with a small trail of saliva connecting their lips. Wakko climbed off of Yakko and laid next to him, visibly flustered from their kissing session. Yakko affectionately put his arm around him, pulling him into a warm cuddle.

"You've gotten really good at that, Wak." Yakko broke the silence, earning a sweet chuckle from Wakko.

The two boys laid in silence for several moments as they allowed themselves a break from the sexual and romantic tension that filled their make-out session. Instead of continuing to kiss, Wakko put his arm across Yakko's waist, holding him closely and gently dragging his finger-tips down his stomach, giving Yakko goosebumps.

Yakko did the same to Wakko, but instead he used his finger-tips to affectionately tickle up and down Wakko's spine. After a few sweet, affectionate kisses to Wakko's forehead, Yakko felt himself experience a powerful, intense feeling of love for his brother. He knew it wasn't normal, but he didn't really care anymore. It felt so good that it didn't matter if it was wrong; that was his brother, and he was having romantic and sexual thoughts about him. He didn't feel shame, but instead felt relief that Wakko was okay with their new, strange relationship.

Just as Yakko thought they were done, he felt Wakko stir and lean in to whisper in his ear.

"Ya know, there's more you could teach me than just kissing..."

Yakko felt his heart skip a beat.

"Like what?"

"Blowjobs."

Yakko's eyes widened at the request.

"Wak!" Yakko sat up in the bed and scooted away from his brother, who looked at him with a sly, smug grin.

"C'mon Yak, don't pretend like you don't wanna at least try it..."

"Wak, I-"

"Pllleassssseeeeee?" Wakko begged flirtatiously.

"B-But we-"

"Just the tip?"

"Wak, you're my brother!"

"Okay, and? Does it hurt you? Does it hurt me?"

Yakko rolled his eyes as Wakko threw his exact words right back at him. He took a deep sigh and leaned back against the headboard.

"Kissing is one thing, but giving a blowjob is completely different!" Yakko tried to stand strong in his defense, but soon felt the tension rise as Wakko scooted closer and began rubbing his thigh.

"So I can have your tongue in my mouth, but not your dick?"

Yakko's ears burned with the explicitness of Wakko's words.

"I can get on top of you and make-out for hours, but the moment I start sucking your dick, it's suddenly 'too inappropriate'?"

Wakko's hands began creeping dangerously close to Yakko's bulge, causing the older boy to turn a bright shade of red.

"Wak..."

Yakko stretched his legs out as he felt himself get harder and harder. Embarrassment and shame filled his emotions as his boner started to tent his pajamas, but an intense sexual desire also burned through his mind as he watched Wakko's hand rub his inner thigh.

"I need to learn sometime. I might as well learn from the best teacher ever." Wakko's words were delivered with such a flirtatious tone that it made Yakko melt.

Before he was able to respond, Yakko felt a jolt of energy and pleasure shoot through his body as Wakko's hand moved from his thigh and onto his bulge, gently rubbing his fully-erect penis through his pants.

"Does that feel good, Yak?"

Yakko nodded and stretched his legs as far as they could go. The pleasure from Wakko's gentle strokes were enough to make Yakko extremely tense, but he found himself enjoying the attention. He laid back and allowed Wakko's inexperienced hands to rub and stroke his now rock-hard bulge for several more moments. Yakko grabbed Wakko's hand when he felt him attempting to pull his dick out through the fly of his pants.

"First lesson; never pull it out through the fly, always just pull their pants down. Pulling it through the fly limits the surface area and restricts blood-flow."

Wakko looked up and smiled as Yakko started teaching him.

"Yes, sir!"

Yakko lifted his hips off the bed as he allowed Wakko to pull his pajama bottoms down around his ankles, leaving him laying in a small pair of tighty-whities.

"Wow, Yak, nice underwear." Wakko remarked sarcastically as he let out a chuckle.

"Hey! Don't insult the teacher!" Yakko responded.

Wakko gave him a goofy grin as he went back to working on his bulge, rubbing it more intensely now.

"Lesson two; don't be afraid to be touchy. It feels good to get your dick sucked, but it should also be fun for you, too. Don't be shy, Wak, let your hands go wherever they wan't. You can even kiss and lick whatever you want."

Wakko was salivating at this point. Rubbing his older brothers underwear-clad bulge was turning him on in a way he didn't know was possible. He bobbed his head down and started kissing and playfully gnawing at his bulge, causing Yakko to quietly moan at the sudden increase in attention.

Yakko put his hands on Wakko's head as he continued to give his bulge some much needed attention. After a few more moments, Wakko moved from his bulge to his thighs. He started to kiss and lick all over Yakko's thigh, and eventually moved up to his lower stomach, giving him lots of sloppy licks and kisses. Although it didn't necessarily pleasure Yakko, he still enjoyed the affection and was surprised to see Wakko getting so worked up.

"Alright, Yak, let's get this gay looking underwear off ya." Yakko rolled his eyes as Wakko hooked his fingers under the waist-band of Yakko's underwear, pulling it down to his ankles.

Yakko felt a sense of euphoria as his cock sprung to attention and was exposed to the cool air of his bedroom. He almost took his cock into his own hands, but he decided to put his arms behind his head and allow Wakko to do all the work.

Wakko crawled next to Yakko and leaned down close to his cock. His tongue hung out the side of his mouth as he salivated looking at his brothers fully-erect eight inches and the decently sized balls that were hung beneath it. Yakko spread his legs a bit to allow Wakko a good view, but put his hand up to block him from getting started.

"Okay, Wak. Before you start, there's just one thing you're missing..."

Wakko looked at him with pleading, lustful eyes. His tongue was drooling for the cock that was presented for him.

"What do I need to do?!" Wakko's response and tone indicated an intense excitement to begin working on Yakko's dick.

"Lesson three; if possible, take your clothes off too. You're still in your pajamas, Wak! I wanna see some Wakko booty while I'm getting head!" Yakko's tone was playful, but the mood changed when Wakko's facial expression went from arousal to worry.

"You want me... to get naked?"

"Yeah, dude. Getting your dick sucked is a lot better when you're not the only one with no pants on."

Wakko felt a wave of fear flow through him. Yakko could tell something was wrong.

"Oh c'mon Wak, don't tell me you're self-conscious!" Yakko teased.

"It's just... I'm chubby. And my dick isn't as big as yours." Wakko's face started to turn red.

"I love your lil' chubby belly! I was feeling all over it while we were kissing!"

"I know, and that's fine, it's just... it's different. Touching and seeing aren't the same."

Yakko sighed. Its not like getting head from a fully-clothed Wakko would be bad, but he wanted Wakko to really get into it. He didn't want any restrictions or boundaries. He couldn't help but feel bad; he obviously hadn't done a good enough job keeping Wakko's self-esteem high.

Yakko sat up and pulled Wakko into a sweet kiss.

"Tell ya what. For this time, just take your pants off. You can keep your shirt and underwear on." Yakko gave him a sweet, loving smile.

"You promise you won't think I'm ugly?"

Yakko couldn't help but giggle at the question. There isn't a chance on earth that he would ever think Wakko is ugly - clothes on or not.

"I promise." With that, Yakko pulled him into another sweet kiss before breaking it off. "Now c'mon, I got a dick that needs sucking."

Wakko smiled and pulled his pants off, revealing a simple pair of plaid boxers underneath. Yakko chose not to comment, but he was very surprised by how sexy Wakko looked without pants on. His bulge definitely wasn't as large as Yakko's, but he made up for it in the curviness of his hips and bottom. His thighs slightly jiggled whenever he moved his legs and his bottom was rounded and stuck out a lot more than Yakko initially thought. After a few moments of watching Wakko take his pants off, Yakko's cock was at full attention again.

"Alright, Wak. First thing you do is start slow. Just use your tongue at first. The tip is the most sensitive, so it's best to start there. Just lick it like you would a lollipop."

Wakko nodded and got to work. He made slow, gently licks across the tip of Yakko's cock. He licked in smooth, circular motions around the head and across the middle, paying extra attention to the slit. He wrapped his hand around the shaft and continued to lick the tip, getting a decent amount of spittle on top.

Yakko stretched his legs out again, looking down at his brother while he pleasured him. He was enjoying the intense pleasure, but he was also taking mental notes on Wakko's technique.

"That's really good, Wak. Just a heads-up though - there's gonna be some pre-cum. It might taste funny, but it's okay to lick up and swallow."

Wakko nodded and continued to lick Yakko's tip. The intensity of his tongue movements started to pick up speed as he felt more comfortable and confident. After a few moments of licking, a small droplet of pre-cum came from the tip. Wakko happily lopped it up and let it sit in his mouth for a moment, enjoying the salty and somewhat sweet flavor before swallowing.

"Hey, Yak, your cum tastes good!"

"I should've known you'd have no problem swallowing." Yakko smirked.

Wakko quickly went back down to licking Yakko's tip, making swirling motions with his tongue and lapping up every droplet of pre-cum. He continued to do this for several moments.

"Alright Wak, you can start licking the rest now. Just go up and down the shaft for a bit with your tongue. Get a feel for the length and width, and don't be afraid to get it nice and wet."

Wakko nodded and immediately got to work. He put his tongue at the base of Yakko's cock, just above his balls, and started to slowly lick all the way up like a popsicle. His tongue made swirls on the tip before licking all the way back down the shaft.

"Oof... y-yeah, that's good Wak." Yakko felt an overwhelming sense of pleasure as Wakko started to work on his entire length with his tongue. It felt great to get the shaft licked, but the swirling motions Wakko made at the tip sent spasms of pleasure through Yakko's spine.

Without being told, Wakko used his right hand to start playing with Yakko's balls as he continued to lick up and down his cock. He gently stroked down his testicles and across his scrotum, causing Yakko to finally moan aloud.

"F-Fuck that's good..." Wakko smiled at the positive affirmation.

Wakko continued to lick up and down Yakko's cock while his hand played with his balls and stroked his scrotum. This intense pleasure lasted for several moments before Yakko finally regained his composure.

"A-Alright, Wak. It's time to go all the way. Wrap your lips around the tip and just slide your mouth down. Make sure your teeth don't scrape it, and don't let yourself gag too much, even if you just get a few inches in."

Wakko smiled, excited to finally take Yakko's full length into his mouth. Before getting started, he took a brief moment to admire the work he had already done to Yakko's member. The entire shaft was covered with a good amount of spittle, and the head was slick with pre-cum.

Wakko puckered him lips and wrapped in around Yakko's tip, enjoying the flavor of the pre-cum that had leaked out. He started to slowly go down, making sure that his teeth weren't scraping him and that his tongue continued to swirl. It wasn't long before Yakko's entire length was in his mouth.

"Shit, Wak... I should've known you wouldn't gag."

Wakko felt a sense of pride and accomplishment at the feat. After a few moments of letting Yakko's cock sit, Wakko pulled his head up and slid his lips to the very tip, enjoying another droplet of pre-cum that leaked while Yakko's cock was all the way in his mouth.

Yakko couldn't help but let out a loud moan. He looked down at his brother with astonishment as he took his entire length into his mouth with absolutely no gag-reflex whatsoever. Wakko kneeled between Yakko's legs and went down once again, taking his entire cock into his mouth. Yakko was no rookie when it came to jerking off and looking at porn, but nothing was nearly as hot as the sight of Wakko knelt between his legs with his entire cock in his mouth.

"That's g-good, Wak. Just keep going like that..."

Wakko did as he was told and continued to go up and down on Yakko's dick. His lips wrapped tightly around the shaft and his tongue happily swirled and lopped up any cum that leaked out.

In a complete state of bliss and contentment, Wakko made a mental note that sucking dick was his new favorite activity, especially Yakko's. Although he wasn't a huge fan of taking his clothes off, the pleasure that he was bringing Yakko completely made up for it and then some. The moans coming from Yakko and the small droplets of pre-cum were indicators that he was doing a good job, and he loved every second of it.

"W-Wak... F-Fuck, I'm gonna cum if you keep going l-like that!" Yakko's words were a warning for his brother, but Wakko did not slow down. As a matter of fact, he sped up. His sucking became stronger and more intense as Yakko came closer and closer to orgasm.

With every passion second, Wakko felt the cock in his mouth twitch and leak more and more pre-cum. Yakko's moans let him know that he was going to cum soon, and Wakko couldn't wait. He wanted every droplet of Yakko's warm, thick cum in his mouth. To Wakko, that was the prize at the end of everything.

"Shit! F-Fuck! I'm c-cumming!" Yakko's words were muffled as he shouted to Wakko, but he did not slow down.

It wasn't long before shot after shot of warm, sticky cum filled Wakko's mouth. The intensity and the overall volume of it was a surprise at first, but he quickly slowed down and moved his mouth to the tip, allowing each spurt to flow gracefully onto his tongue. The amount of cum soon became a bit overwhelming, and it started to leak out the sides of Wakko's mouth.

Wakko wanted every drop, though. Once Yakko had finally finished shooting ropes of cum, Wakko went and started licking the small bit that dripped down his cock, lapping it up happily like a milkshake.

Yakko was panting heavily, but he kept a hand on the back of Wakko's head as he licked up and swallowed every last drop of cum. He affectionately played with his ears, giving him scratches that made Wakko purr softly.

Once Wakko finished cleaning him up, he peaked up from between Yakko's legs and gave him a sweet, goofy smile.

"Did I do a good job?!"

"You graduated blowjob school with a perfect 4.0 GPA."