"She knows you're a teenager, sweetheart, of course!" Tina scoffs. "She's already planned some very fun activities for the two of you to do together. However, the activities require being able to hold it for a long time, and when I told her about your tiny bladder, she decided it would be best for you to wear diapers for them."
"Then why am I wearing them now?" Leah demands.
"So you get used to them! If you're used to them, then you won't be distracted by them while you're out doing your fun activities."
That's a frustratingly good point. Leah sighs.
"...Fine. But after this, no more diapers, okay? I'm done."
"Of course." Tina gets up. "Go ahead and pack. Make sure to bring clothes that will fit over your diaper."
"Oh my god," Leah mutters. "Leave!" Tina leaves the room, and Leah begins to throw her baggiest, most flowy and loose clothing into a suitcase. Hopefully she won't have any diaper bulges with those. After a moment, she also changes into a proper teenager outfit, with a cute skirt so that she doesn't have a diaper bulge.
When she emerges from her room, Tina is obviously disappointed Leah is no longer dressed like a toddler. But she's pleased when Leah confirms she's still diapered. Leah keeps to herself the reason, that she wasn't sure how to get it off. They load up in the car to go to Rita's.
Leah is shocked at how nice Rita's house is. It's in an expensive neighborhood and is one of the nicer places there. From the driveway, she can see a pool in the backyard, and knows that's where she'll be spending as much time as possible.
Rita herself is similarly upscale. She's just as beautiful as Tina, but where Tina tends to dress down, Rita dresses up, fully glam from head to toe. Rita greets them warmly, even complimenting Leah's hurriedly put together outfit, making Leah smile.
While Leah gets settled into her very nice, very big guest room, complete with en suite bathroom, Tina and Rita chat. Leah walks into the living room just in time to say goodbye to Tina before she leaves.
Once Tina is gone, Leah sits on the nice couch, trying to ignore her diaper crinkling under her.
"So, Tina said you've got some ideas for activities that having a small bladder aren't good for?" she says hesitantly. Rita smiles.
"Yes, but they are a lot of fun! Trust me, you'll find the diapers are worth it."
"And I have to wear it even now?"
"If you want to go tomorrow, yes," Rita says firmly. "I want you to be used to diapers so they don't detract from our fun tomorrow." Leah sighs.
"Well, whatever it is, it better be worth it."
"Believe me, it is," Rita says. "Tomorrow, we're going to..."