They run into Adrien

Marinette and Alya kept walking to school, they talked about how their weekends, including stuff they did for their respective hobbies. Suddenly, just as they made it to the school entrance, Marinette tripped over something on the sidewalk, and was about to fall back until someone caught her.

Marinette let out a sigh of relief. "Phew! Thanks, Alya." She said. However, Alya was right in front of her. Hesitantly, she looked up to find that Adrien, as in her crush, had caught her. To make things worse, Marinette chose to wear a skirt today, and it had gotten moved up, giving Adrien a clear view of her padded underwear. "Uh... h-hi Adrien! How today are you? I mean, how are you today?" She asked, making a quick recovery and got up herself.

"I'm doing alright. You're not hurt, are you?" Adrien helped Marinette pick up her belongings.

"You're fine--I mean, I'm fine." Marinette replied.

Adrien seemed hesitant to say something to Marinette, but decided to honest. "Um, uh... Marinette? I noticed that... one of your diaper's tapes was broken." He was blushing, but not nearly as much as Marinette was.

Marinette quickly turned around and saw that Adrien was right. "OKAYIGOTTAGOSEEYOUINCLASS!" She blurted out and ran off before Alya could even react.

Marinette retreated into the girls' bathroom with Alya and hid in a stall while she changed into a new diaper. "Ugh, that was a nightmare! How can he even see me again without laughing?"

Alya was outside waiting for her friend. "Come on, girl. It wasn't that bad, was it? At least you were dry."

"But how can I even start a family with Adrien if I'm basically a big baby?" Marinette retorted as she came out and readjusted her skirt.

"You're not a baby. So what if your underwear is different? People still care about you, including Adrien. Besides, I know some girls who would kill for a butt like yours." Alya playfully smacked the back of Marinette's padded rear, and Marinette couldn’t help but laugh.

"Alya!" Marinette giggled, feeling a lot better thanks to her friend's encouraging words.