A specialized, ABDL bus.

The bus had arrived at their stop. It was the size of a regular school bus, but it wasn't yellow. It was a mixture of white and bright blue, with the stop-sign done in a bright pink and written in a soft, curvy font. "Madeline W. Paula Developmentary School" was written in a similar font on the side of the bus, with the school's mascot -- an anthropomorphic lion with a baby-blue t-shirt and baby-pink diaper in between his legs -- to the left of the title.

Walking out of the bus was an attendant, Ms. Emily, who was also an a special assistant to the bus driver every other week. The students at this school had special needs after all and needed that kind of assistance.

"Hey boys."

"Good morning, Ms. Emily," said the boys in unison. They both took off their backpacks before she handed each other them harness, helping the both of them into the straps until the harnesses were wrapped securely around them from their shoulders down to in-between their legs.

Ms. Emily picked up their backpacks and followed them into the bus. Jim and Timmy picked an empty booth near the back and sat together in it. After Ms. Emily put their backpacks in a compartment above their seats, she hooked up the harnesses to a series of clips built into the seats - two on their shoulders, two on each sides of their waists - and ensured that they were safely strapped to their seats.

Soon the bus started moving to pick up the rest of the students, each of them put into similar harnesses all over the bus. Some were loud, some didn't speak much, some preferred sucking in their binkies. Some were in regular looking pants and shirts. Some were in onsies. Some of them were in just t-shirts and diapers.

After the school made its last rounds before heading to the school, Timmy abruptly stopped talking in the middle of their conversation. He scrunched his face in concentration and crossed his legs. He gave a last grunt, then a sigh, before picking up their conversation like it was nothing.

Jim, and everyone else on the bus for that matter, have lived their entire lives either wearing diapers or being around diapers, so they were all basically nose-blind at that point. Odds are Timmy wasn't the only one in a poopy diaper, and they will have plenty of time before class to get changed. Jim had a funny feeling in his tummy, so it's likely that he will need changing before classes started.