I had this idea as a one-shot originally, but I think I might turn it into a full story. Please note that this story is explicit and shouldn't be read by anyone who doesn't ship NSFW Gumwin. If you enjoy it, please favorite and leave a review! Thanks!

Also, the boys are freshman/sophomore age in this.

Gumball let out a loud sigh as his head hit the pillow. Highschool was exhausting, and he couldn't stand how complicated his relationship with Penny had become. They were currently on a "break" from each other, but Gumball couldn't help but feel like this break was lasting forever. It had been several months, and Penny wasn't even attempting to contact him. He felt lonely, but he couldn't confide in Darwin like he used to when they were in middle school - it just wasn't cool, especially since he quite literally sobbed to him when he came out as bisexual.

When Gumball came out as Bi, nobody was truly surprised. He always acted different around the boys; not in a bad way, but it was clear he wasn't as comfortable talking about sex with his guy friends. He was also insecure about his body. While Tobias was flashing everyone his dick in the boys locker room, Gumball felt like he needed to look away. Meanwhile, all the other boys pointed at him and giggled. It wasn't long before Gumball realized his awkwardness was because he viewed Tobias' body the same way he viewed Penny's - he thought he was hot.

He felt an overwhelming sense of fear when he came out to Darwin. He knew deep down that his brother wouldn't care, but he was still nervous. Nothing would hurt more than having Darwin, his best friend and brother, be grossed out or made uncomfortable because of his sexuality. However, that wasn't the case. Gumball actually ended up crying when he came out to Darwin, but Darwin just sort of laughed at him, as if to say "you really thought I would love you any less?".

Gumball smiled as he relived the coming-out experience. He only did it a few months ago, but it felt like hardly anything changed, especially with Darwin. After coming out, the two boys started talking about their crushes and sexual desires, however, Gumball opened up to Darwin about his feelings towards other guys. Darwin was really the only one Gumball felt comfortable enough with to make explicit jokes or talk about how "sexy" some dudes ass was.

The two boys have also come to terms with their sexual needs. About a month ago, Gumball and Darwin were surfing the web on their computer as they usually do. However, after a dare and some teasing, the boys ended up on a porno sight.

Watching porn was not something Gumball or Darwin typically did beforehand. They felt sexual desire, but they were both too afraid to actually seek out pornography and instead opted to just masturbate in the shower or on the toilet. Once they started watching though, they were both hooked. It became an unspoken activity they did together - one would start watching porn, and the other would just eventually join in. To Gumball, it didn't feel weird. All teen boys watch porn and jerkoff, right?

As Gumball began thinking about porn, he couldn't help but feel a pressure building in his pajama pants. Without hesitation, he took out his phone and typed "sexy blowjob" into the google search bar; with incognito on, of course.

Gumball clicked on the first video and adjusted the volume to be just loud enough to hear but not loud enough to bring unwanted attention. He scooted himself up a bit to get into a more comfortable position and began to play with his bulge as the lady in the video started to go down on the man, kissing his naked stomach and tugging on his undies.

After about thirty seconds of watching, Gumball decided he thought the man was hotter than the woman in this particular video. His abs were smooth and defined, but not overly muscular. His bulge was large and sexy, and the tip of his cock was peaking out the waistband as the woman started licking and kissing it. Gumball licked his lips as he reached his hand into his drawers, imagining himself as the one licking and playing with the mans cock.

"Hey, what are you watching?"

Gumball jumped for a moment before realizing it was just Darwin on the top bunk.

"Uhh, nothing." Gumball playfully responded.

"I hear a lot of heavy breathing and groaning for a video called nothing!" Darwin giggled and hopped off the top bunk. "C'mon, I wanna see!"

Gumball rolled his eyes and sat up in his bed, patting the space next to him. "Alright alright, I'll let you watch. It's just a blowjob though."

"BJ's are my fave!"

Gumball smirked at the comment, but chose to ignore it and continue playing the video.

An initial sense of awkwardness lingered for a moment as the two boys watched the man get a slow, sloppy BJ from a woman wearing heavy, whorish makeup and an outfit so revealing it was almost funny. However, that sense of awkwardness quickly faded as time went on. The mans cock was completely out at this point, and it was rather huge; at least 9 inches, and very girthy. Gumball almost started drooling when the woman finally pulled the mans undies off, revealing his incredible length and the large, low-hanging balls beneath. It looked so tasty to the teen, and he couldn't help but feel his cock harden up once again.

Meanwhile, Darwin's eyes were glued to the screen in more of an eager fascination rather than aroused kind of way. He thought the woman was sexy, but he didn't feel much excitement until the woman took her top off, revealing her large, perky breasts. His eagerness quickly turned to horniness as his cock quickly hardened up at the sight of the woman's tits - he was a bit easier to excite than Gumball.

"This is... kind of hot..." Darwin said, staring intently at the woman as she took the mans full length into her mouth.

"Yeah, I know-"

Before Gumball could even respond, Darwin kicked his shorts and undies off, revealing a rather large, girthy cock and two medium sized balls held in a tight scrotum. Gumball always does a double-take when he sees Darwin's dick; he never thought the cute, sweet step-bro who barely ever wore pants would end up being hung. At first, he felt jealous and self-conscious as his dick was more on the average size. Not small, but not quite as thick and long as Darwin's. However, after seeing the dicks of several of the other boys at school, he didn't feel quite as small anymore.

Darwin took his length into his hands as soon as his shorts hit the floor. His eyes remained glued to the screen as his fingers started to stroke up and down his shaft, tickling his balls occasionally for a different sensation. When his fingers got to the top of his shaft, he used his thumb to rub in some of the pre-cum that had leaked, using it as lube as he continued to make long, slow strokes up and down.

Gumball decided to do the same. He stood up for a moment and dropped his shorts, revealing his rock-hard boner and small, fuzzy balls underneath. Although dick was a good six inches, he still sometimes feels embarrassed when people see him with no pants, especially after Penny called him "cute" the first time she saw him naked.

He didn't feel shame with Darwin though. The two boys grew up together, and he knew Darwin didn't think anything of his body. Darwin truly was the only person Gumball could expose himself to with no embarrassment, and he honestly kind of liked that.

Gumball sat back down on the bed after kicking his pants off. He spread his legs just a bit and took his dick into his hand, making slow, less thoughtful strokes than Darwin. He watched the porn on the screen for a moment, trying to get into it. The mans dick was just as beautiful as before, but now the woman was vigorously deepthroating it, making loud, rather gross noises as she took his cock into her throat. However, it was clear that Darwin was enjoying himself.

Darwin's stroking started to speed up. He was now pumping his dick at a somewhat medium pace, using some spit and any precum as lube. His dick was wet enough to be making a faint fapping noise as he stroked - a sound that was much more appealing to listen to in Gumballs opinion.

Gumball could barely pay attention to the video with the way Darwin was jerking off next to him. Darwin had no shame when it came to masturbating with Gumball. His legs were spread and his cock sprung to full mast as his hands slid up and down his spit and cum-soaked shaft. His balls were gently bouncing with each thrust, and soft, sexy groans started to escape from his lips. The sight was incredible; Gumball found his cock harder than ever. He took his dick into his hands again as he started to jerk himself off, hoping that it wasn't obvious he was watching Darwin.

As both boys started to pound their cocks harder and faster, Gumball couldn't help but to start fantasizing. He thought about what Darwin's dick would taste like, and how it would feel in his mouth. He knew Darwin's dick would be too big to deepthroat, but damn if it wasn't sexy. He imagined himself sucking the tip like a lollipop, only to wrap his lips around the head and slowly take his entire cock into his mouth, swirling all around it with his tongue.

"You like what you see?"

Gumball froze, immediately turning a bright shade of red as he snapped himself out of his fantasy.

"I uhh- I w-wasn't- you k-know-" Gumballs words were frantic as he tried to respond.

Darwin smirked at how flustered Gumball was, but his attitude took a more gentle approach as shame and humiliation was obvious in Gumball's facial expression.

"Hey man, it's okay." Darwin's voice was gently but still playful.

Tears started to swell into Gumball's eyes as the embarrassment and shame of the situation started to sink in.

Darwin let go of his cock and grabbed Gumball's hand, giving him a playful but friendly squeeze.

"I'm not upset, I promise!"

The tear escaped Gumball's eye as he sighed, comforted by the fact that Darwin wasn't horrified at what he was doing. He was caught though, and he still felt a pit in his stomach.

"I just... I got distracted. You were just being so..."

"Sexy?" Darwin teased, getting a shy but genuine giggle from Gumball.

Gumball gave Darwin a playful punch on the shoulder.

"Yeah, whatever you say, bro."

For a moment, the two boys laughed. Gumball still had his pants off, but his dick was no longer hard due to the embarrassment of the situation. However, he noticed Darwin was still hard as a rock.

"Hey Darwin, you can go ahead and finish. I'm not really in the mood anymore." Gumball was about to pull his pants back up before Darwin raised his hand, stopping him.

"C'mon G-Ball, don't leave like that!"

"I'm just not feeling that video anymore." Gumballs spoke tiredly.

"Who said we had to watch a video?" Darwin grabbed his cock again, giving it a gentle slap and a good stroke.

Gumball couldn't help but admire Darwin's cock as he flaunted it in front of him, but he also felt offended as he assumed Darwin was teasing him.

"What the- Dude, that's not funny." Gumball spoke in a serious, offended tone.

"My hand is starting to hurt, dude. I could really use some help~" Darwin playfully winked at Gumball as he made another stroke along his cock, this time gently squeezing his balls. He spread his legs a bit to allow Gumball a better view of his junk.

Gumball felt his dick twitch at the sight, but he still felt a bit offended by the request.

"You're a freaking weirdo, dude-"

Just as Gumball spoke, a thick, creamy dollop of pre-cum leaked from the tip of Darwin's cock. Gumballs eyes widened as Darwin his his thumb to rub the drip of cum all down his shaft, giving it a shiny, slippery look and feel.

"C'mon Gummypuss, just touch it..." Darwin's voice was smooth and enticing.

Gumball was at full hardness at this point, his mouth practically drooling at the sight of Darwin's cum-soaked penis. He still felt a sense of shame, but his arousal was starting to take over as he slowly reached his hand out towards Darwin's cock.

"That's right Gumball... hnnnng..." Darwin let his cock go from his hand as Gumball took over. He laid his head back and allowed his older step bro to just touch and explore his cock.

Darwin's dick was hot to the touch, but still slick due to the precum slathered all over. At first, Gumball just ran the tips of his fingers up and down the shaft, almost tickling it. It wasn't long before Gumball took it into his hands and started to give him a slow, methodical hand-job, using his own spit as lube.

At this point, Gumball was completely lost in horniness. His full attention was on Darwin's dick; even his own dick was being neglected at this point. He massaged it up and down, admiring the slickness of the pre-cum and spit. It felt incredible in his hands - everything he ever wanted in a cock. The balls were fantastic too as Gumball used his other hand to gently squeeze and juggle them.

"F-Fuck... Rub it good..." Darwin's eyes were closed as he was lost in the ecstasy of the moment. Gumball's grip on his cock was perfectly firm yet gentle, and the way he used both hands - one for his cock and one for his balls - was exquisite. He always assumed a hand-job would just feel like jerking off, but boy was he wrong.

"I want to taste it." Gumballs words broke the silence.

"Huh?" Darwin was a bit stunned as he was broken out of his pleasurable trance.

"I want to suck your dick, Darwin." Gumball spoke in a matter-of-fact tone, clearly trying his best to sound confident.

Darwin didn't even respond, he just nodded and leaned back yet again, happy with whatever treatment he was getting from his bro.

Gumball got down on his knees in front of Darwin, aligning his dick up with his lips. Without any hesitation, he stuck his tongue out and started to gently drag it across Darwin's tip, causing the boy to moan and squirt several healthy drops of pre-cum onto Gumball's tongue. At first, Gumball was surprised by the sudden flavor, but he lapped it up happily, knowing that his tongue was giving his lil bro so much pleasure.

Gumball continued to think of a lollipop as he licked the tip of Darwin's dick, this time wrapping his lips around the entire head, creating a decent amount of suction. This cause Darwin to once again moan. Gumball had watched enough gay porn to know that using teeth is bad when sucking dick, so he went extra carefully and slow as to make sure only the soft parts of his mouth rub against Darwin's cock. Before long, Gumball was slowly stuffing his mouth with more and more, eventually causing his cheeks to puff out a bit.

"That's so good! Aghhh!" Darwin felt his legs stiffen as Gumball took almost every inch of his dick into his mouth, soaking his entire length in slobber. Gumball felt accomplished by the act - he can take a lot more cock in his mouth than he though!

Gumball began to remove the dick all the way to the tip, only to slide it back into his mouth and across his tongue, affectively jerking him off with his mouth. Every drop of pre-cum that leaked into the boys throat was a reminder of how good he was doing, and every groan coming from Darwin was like music to Gumball's ears.

"Fuck dude, I'm n-not gonna last!"

Completely entranced in Darwin's dick, Gumball ignored his warning. He continued sucking his entire length, swirling his tongue around the shaft and head to increase his pleasure.

"Fuck!"

Darwin grabbed Gumball's ears, scratching and pulling them as he stuffed his mouth with his thick cock. He started to affectionately stroke the back of his head and the incredible blowjob continued. Gumball didn't slow down, and there was no signs of any issues or gagging - just pure, expertly given head from his bro.

"I'm gonna cum bro!" Darwin gave Gumball a quick warning, fully expecting the boy to stop sucking as to let his cum shoot onto the floor next to him. However, Gumball continued, and he didn't stop when Darwin approached orgasm.

Gumball knew he needed to swallow Darwin's entire load. Nothing would satisfy him except his mouth getting filled with his younger bro's thick, warm cum, and that's exactly what he got. Gumball slid Darwin's dick out of his mouth and wrapped his lips around the head, taking every thick, creamy shot of cum into his mouth. He gave the tip of his cock a good suck, like getting the cream out of a donut. He wanted every drop to fill his mouth.

After a few moments of intense orgasming, Darwin's dick was finally drained, leaving Gumball's cheeks completely stuffed with his warm load. He looked up at Darwin with big, sweet eyes, and proceeded to swallow every drop without hesitation.

After seeing that, Darwin fell back into the mattress, exhausted and satisfied.

"I could get used to that..."

Gumball smiled and sat on the bed next to him.

"And you say you're straight..." Gumball teased.

"Hey! Girls also have mouths! It's not gay if you both have one!" Darwin sat up in the bed as he playfully responded.

Gumball giggled and tackled Darwin as he tried to sit up, pinning him down as he straddled him.

"Do you know what else girls also have?"

Darwin playfully tried to move, but was completely pinned down by Gumball who was leaning down at almost kissing distance.

"What else?" Darwin responded as he smirked.

Gumball grabbed Darwin's hands, placing them on his bare ass.

"A butt!"