"How's a park sound?" Tonya suggested the first thing that popped into her head before frowning. "Wait, maybe not. It's a little too public-"
"No no, it's fine. Park sounds great, let's go!" Leah shouted impatiently, bouncing up and down with her legs kicking every other way.
"Leah, wait, think about it first. Do you really want to be in public right now?"
"It's fine, on one recognizes me anyways, come oooon Tonya let's go!" Leah whined. Tonya chuckled a little; though she was concerned about Leah's drop in maturity, it was extremely cute. Tonya blinked at that thought. Did she find Leah cute like this? That question made a whole lot of other questions rise up in her mind, so she decided to push them aside for Leah's sake.
"Alright, alright, sit still! We'll go!" Tonya said, suddenly worried that she accidently commanded Leah again. However, Leah continued to squirm, very much NOT sitting still.
"I literally can't stand still! Ugh, it's torture! Are we there yet?"
"I just turned the car on. I'm sorry, but you'll have to...umm...wait?"
Leah groaned, pouting like a child. Again, Tonya felt herself smiling at Leah's childish antics. Does Tonya...like this? She pushed that question away once again.
The drive was, fortunately, short. The moment they parked, Leah unbuckled and practically threw herself out the door. Tonya watched in amazement as the tot-looking teen bolted across the pavement onto the large open grassy field, running at speeds she didn't think Leah was even capable of---Tonya might even have trouble keeping up with her.
She took a bit more time getting out and locking the car, and by the time she joined up with Leah the girl was scurrying up a tree. It was a smaller one with low branches that Leah immediately latched onto, and began swinging and climbing across the tree like a monkey on crack.
Tonya could only watch with amazement; Leah was never particularly fit, and running was a challenge with her height, so seeing her move so fluidly was quite the spectacle. After a good 10 minutes of movement, the girl finally began to slow down, sitting on a branch while breathing heavily.
"Holy shit." Tonya said in awe, prompting Leah to laugh before grunting. She had to reposition herself to comfortably squat, letting out desperate little farts before she could finally properly push. Tonya realized too late her poor word choice, and was about to say the reverse before stopping herself. Leah had already pooped herself quite a bit, so stopping it was pointless. That, and Leah didn't tell Tonya to say it. So Tonya stood there and watched as Leah's diaper expanded, finishing up with a satisfied sigh.
"I surprised myself. God, is this how toddlers feel all the time?"
"Sorry about that."
"Eh, it's fine. Honestly it was a rush moving like that. Never thought I'd want to climb a tree again."
"N-No, I mean yeah sorry about that, but I meant you, umm..."
"Huh? Oh, right." Leah looked down at her diaper with far less embarrassment than before, "I mean, I figured this will just keep happening. No need to make a fuss about it every time."
Tonya tried to hide her surprise, but still felt her eyes widen. Was Leah getting used to this? If Tonya is being honest, SHE'S getting used to this; her first thought wasn't how strange it was that Leah pooped herself, but on where to give Leah a change in such an open space.
"Well, come on down and I'll get you changed."
"Uh, can it wait? I kinda still need to move."
"Still?!"
"Heh, yeah. I don't think I could sit still for a change if I wanted to. Sorry."
Tonya was gobsmacked again: here was her friend, dressed as a toddler, currently hanging from a tree in a dirty diaper saying she doesn't want a change so she can play more.
"If you're sure. Don't stay in it for too long, though. You'll get diaper rash."
"Yeah yeah. Thanks Tonya!" And she was off, once again climbing around the tree with vigor, her bulging messy diaper swishing behind her. Tonya let out a gasp of disbelief, not because of the strange situation. Why did this not feel so...weird? Why does this feel natural? Tonya could avoid it any further, she found Leah incredibly cute like this. Upon further introspection, she realized she...