Jeff and Mike ended up having the time of their young lives as they spent the rest of the day as carefree toddlers. They played with toys in the nursery, chased each other around the backyard, and sat the couch watching cartoons together. That last activity was Jeff's favorite as they watched a lot of Spongebob, which was a show be never grew out of. His dad easily slipped into the role of baby brother, seemlessly acting his age by waddling around giggling and sucking his thumb. He was the perfect role model that Jeff tried to follow despite being a whole year older. However whenever their mom was out of the room they talked to one another like grown ups, albeit ones who were still in diapers.
Speaking of diapers the duo both ended up using theirs two times before dinner rolled around, though it was just number one. Dinner ended up being spaghetti and meatballs that were lovingly cut up. Jeff became slightly jealous when Mike because he was younger got to be hand fed and he had to feed himself. His jealousy grew when after eating the last bite of food Mike uncontrollably pooped himself. After being cleaned up both of them were given a bubble bath together. While taking one was admittedly fun Jeff hated going without his diaper for the duration of the washing, his mood brighting when he was dried off, laid down on the floor and taped back up in a pamper.
Once his brother was also padded up the two were taken straight back to their room where their mom got them ready for bed. She dressed Mike in a space themed footed sleeper and he got a flannel shirt and pants with Avengers designs. Jeff hated that his pajamas covered his diaper from view and purposely lowered the top so the waistband could peek out. Feeling tired neither put up a fuss as they were tucked into their respective beds; Mike the crib and Jeff the small bed. After a kiss on the forehead goodnight she turned on a nightlight then left the room, the two toddlers falling asleep within seconds afterwards.
It was still the middle of the night when Jeff was woken by the strong urge to poop. Upon realizing the reason for his waking he smiled and calmly rolled onto his side, knowing he didn't have to do anything given what he was already wearing. Grunting quietly Jeff pushed, his eyes shooting open when he felt a really big thick log exit his butt. Feeling the large long solid poo slowly fill the seat of his diaper was exhilarating. When it was all out the back of his pamper was practically bulging against the inside of his pants. He even reached back to touch it with his hand. Grinning at the heaviness in his underwear Jeff upon noticing he had to do the other thing as well decided to let loose into the front of his padding with a long steady stream of pee that lasted fifteen seconds. Wetting himself while not quite as fun as pooping was still enjoyable enough considering he was doing it in bed. Sighing as he finished Jeff took note of the warm squishy sagging front that covered his damp crotch.
His garment now full on both ends Jeff lay in bed basking in the sensations of the well used diaper. To make himself even more content and relaxed he sucked his thumb like he'd seen Mike do. Though Mike had been given a pacifier to enjoy after being put in the crib. Seeing his baby brother snoozing in the barred enclosure, sucking on the binky and snuggling a stuffed animal filled him with a small mixture of longing and jealousy.
Jeff then...