Sora didn't take too long in the shower, but he did enjoy the slightly cool water and the soap, also taking care to not get his hair too wet, as he couldn't take a blowdryer to it (think Toph in the morning).
Eventually he mosied on out of the shower, making sure to turn the fan on, and used a washcloth to wipe down the condensation on the mirror, and other places, so that it didn't look like someone had taken a shower. He wandered back into his room with a towel around his waist to put his clothes on. He was pleased to see Riku paying attention to his homework. Sora tossed both their towels into the laundry basket and sat down on the floor with a very contented sigh, pulling his textbook over to him.
"Wow. I feel relaxed." Like, a lot. He could probably even read the last two chapters in peace.