Me and my little brother were having a lot of fun playing video games. Earlier that day, our mom bought us Gran Turismo 3 for our PS2, and we were having a blast racing on it. My brother, despite being 3 years younger, was often more than a match for my own skills.
	We had been playing for about 3 hours and frankly I was feeling the need to poop coming on. We had both been getting up to pee when needed because it was quick enough where we could do it between rounds no problem, but the need to crap was sneaking up on me.
	Just then I heard my brother shift slightly and let out a soft airy fart, that combined with the smell of a young boy obviously needing to poop reminded me that he’s in much the same position. I farted in kind, adding to the aroma in the room, and only making my need feel more pressing.
	Jimmy was winning this race by quite a bit, and for some reason even though he was fidgeting and farting more, his need to poop seemed to be distracting him less, while for me holding and trying to make sure I didn’t fill my briefs was taking up a lot of my concentration.
	The race continued, with Jim staying in the lead the whole time, and my need to shit only increasing. Then something I wasn’t expecting happened.
	“Mmmf!'' Jimmy let out a small grunt  and shook his head slightly. He had to go very bad and I could tell, but he was dead set on winning the race, the last lap was coming up, and he was determined to whoop his big bro’s ass. 
	Without any more warning, and while never moving his focus from the screen of the TV in our shared room he lifted his butt slightly off the ground, and started grunting more. I was confused at first, until the tell-tale smell let me know exactly what he was doing. And so did the crackling of his poop as it filled the 6 year-old’s Scooby Doo briefs I knew he was wearing.
	While his concentration was unbroken as he pooped his pants, a visible bulge forming in the back of his shorts, the spectacle was enough to make me crash my own car in the game and gawk. The grin I was pretty sure I already saw on his face became much more obvious as he then sighed in contentment and relief, the last of his load depositing into his undies. The fact he had secured his victory at the same time adding to it.
His car passed the finish line in the game in first place as my controller just hung limply from one hand, still in awe. I felt a sudden cramp distract me from the unexpected pleasant stiffness in my wee that had developed, reminding me of my own need.
	Jimmy had stood up, the bulge in his pajama shorts even more obvious now, as he basked in his victory and giggled at my shock.
“What’s wrong Robert? I know you’ve seen my poop my pants before.” He said with a good-natured giggle, as he turned to face me. There was a slightly damp tent in the front of his shorts as visible as the large bulge in the back, and he had an adorable smile and s slight joyful blush.
	 “I… uh… I didn’t know you were okay with it.” I said plainly. “I knew you didn’t mind being messy sometimes but I still thought it was always accidents.” I was smiling and blushing back at him feelings of unexpected excitement washing over me.
	“Nu-uh Bobby, it feels goood. You should try it I know you gots ta go.” He said gesturing to how I was still squirming with my need.
	“Plus,” He said and covered his mouth in an excited giggle. “I sees you gots a stiffy too. You liked seein me go poop in my pants.”
	I knew I couldn’t deny that, Jimmy knew me too well, as per always. To be frank I kinda did wanna try it.
	“Okay little bro, I’ll try it, it looks fun,” I started squirming with both my continued need to poop as well as nervousness. “Just uh… promise you’ll help me clean up.” I continued blushing bright red.
	“Of course I will, silly.” Jim said and smiled warmly at me, taking my left hand into his right and kissing me on the cheek. “You know we always look out for eachother big bro.”
	I smiled back at him, blushing even more as he embraced me in a half hug or snuggle. My stomach then decided it was a good time to gurgle, which caused him to rub it.
	“Go on Bobby, I can tell you need ta go bad, it’ll feel good, I promise.” Jimmy reassured me as he stood up on his tip-toes and pressed a kiss to my lips finally. I quickly kissed back, not turning it into a make-out session because of more pressing matters. The younger boy was always so good and comforting me.
	“Okay, here goes nothing.” I bent my knees slightly and started to rear down on my bowels, in no time at all I felt the load inside me start moving, and soon it was at my rear exit ready to come out. With a little more reassurance from Jimmy in the form of a tummy rub, I went past the point of no return and started filling my own Power Rangers briefs.
	It felt frankly amazing as the first turd tented out the back of my undies before depositing itself snugly against my butt. Jimmy moved one hand to the back of my shorts and cradled the bulge as it grew. The intimacy and relief was enough to make my peen even more rock hard, and Jimmy knowing that was coming rubbed that too.
	I kept on pushing as another big log came adding to the nice fullness in my undies of the first one. At the same time, some pee escaped my bladder despite my raging boner, and met Jim’s hand rubbing the front tent. I knew he’d be horny too, so decided to return the favor, even feeling the back of his pants too, the warm, firm but comfortable load feeling a lot better than I expected, both in my undies and through his.
	I pushed out the last of my poop as I neared an orgasm, the feelings from both sides were too much to bear and the fact that it was with my awesome little bro made it even better. Jim’s pleasured whimpering told me he was feeling much the same, and soon we both moaned loudly and dry came into out well used undies, 
	Fighting off an urge to collapse, I drug us both to the bed we share, and snuggled up with him, spooning him close. His ‘accident’, warm against my crotch and my own snug and comfortable in my briefs. I pulled the blanket over us and drifted off to sleep, knowing that we’d be able to take care of it whenever we woke up, because mom and dad trust us with each other and don’t interfere in things that don’t concern them.