"Tanaka-kun, yo, what're you doing?"
Tanaka watched as his neighbor, [Name], bounded up his home's driveway, waving her arm in a sporadic greeting. He squished the sopping wet sponge that lay in his grasp, causing it to leak soapy water as he showed it to her.
"I lost a bet. Now I have to wash my sister's car."
Tanaka jutted his lower lip in an annoyed pout, going back to dunking the sponge in clean soapy water before running it over the sleek metal frame of the vehicle that sat in the driveway. [Name] watched him with her own pout settled on her features. She had wanted to hang out with the second year today, hoping that the two of them could spend their weekend partying it up. After a complete moment of watching Tanaka do an awful job at scrubbing the dried on bird crap off his sister's car, [Name] skipped over to the bucket full of soapy water. Her small hands latched onto a second sponge that sat nearby before dunking it into the solution.
"I'll help you," [Name] chirped, answering Tanaka's unspoken question when he looked at her. "That way it'll get done faster and we can go out together."
Tanaka blushed at the implications her words had, but nodded either way, glad he would be finishing the tedious chore a lot faster than he had expected. Returning his focus back towards the work at hand, Tanaka went about scrubbing the car down with the soft sponge until it was nearly spotless. His older sister came out of their house after a while, greeting [Name] with a warm smile and offering the teenager a glass of water. When [Name] had refused the offer, saying she was content for the moment, Saeko turned back towards the house.
"Don't forget to wash the roof," she ordered as she vanished back into the building.
Waving off his sister's commands, Tanaka grumbled slightly as he reached up with the wet sponge to wash the top of the car. His eyes flickered down for a moment, looking through the car's window to the other side, and he had to do a triple take in order to confirm that what he saw was truly happening.
Reaching up on her tiptoes, because she was much shorter than Tanaka, [Name] was trying her best to reach the roof of the car on her side. The sponge in her hand was dripping, causing rivulets of water to cascade down her arm and soak her shirt. Her chest, which was pressed up against the window in front of her, had started to become damp due to the water on the glass that had yet to dry up. Slowly, the thin fabric of her shirt had started to become translucent and a pattern beneath was starting to make itself known. It took Tanaka quite a while to realize that the sudden blue polka dots he was seeing appear on her shirt was not some sort of magic design, but the pattern of her bra peeking through her now thoroughly soaked shirt.
"A-Ah, uh, [Name]-chan, your, uh…" At a loss for words, Tanaka merely pointed down at his own shirt as he looked away from the female.
Glancing down at herself, [Name] squeaked in embarrassment and started an onslaught of apologies, both teenagers turning red in the face. Offering to run into his house in order to retrieve her a towel, Tanaka cast one last sneaky glance at [Name]'s chest before running inside.
From the window, Saeko watched with a smirk. Her little brother was finally growing up a little.