"Cas, first you turn on the water as hot as you can but make sure it's not hot enough to hurt. Then you get in without your clothes-"
"How? I didn't think humans can perform osmosis."
"You have to take your clothes off before you get in."
"Okay."
"Well, then you get in and get your entire body wet. Once your hair is completely wet, use this bottle." Dean held up a clear bottle with blue markings. "Pour out the shampoo on your hair and make it foamy and then rinse it off with the water." Dean put it down and picked up a smaller bottle. "Use soap to make a foam and rub it all over yourself but not the hair. Then rinse and turn off the water and dry off with this towel. You can wrap it around you to go to your room and change. Questions?" Dean raised his eyebrows, hoping beyond hope that Castiel wouldn't ask him anything. This was awkward enough as it was, with two grown men discussing the events that took place behind shower curtains.
"No." Castiel looked at Dean intently.
"Now you go take a shower." Dean threw a towel at him and left the bathroom, closing the door behind him. "Have at it!" Castiel heard as Dean's footsteps receded.
Castiel looked at the towel and began to undress. He looked at himself in the mirror.
Jimmy's body is still surprisingly fit. Well, I guess it's my body now.
Castiel felt almost lonely as he realized his was the only mind occupying the body.
I wonder. The bag Dean found... Maybe it was something only angels could see. Since I'm no longer an angel, it would explain why Dean has it along with why neither of us can see it.
Dean. I wish he would find something to occupy his mind. He doesn't think I see, but I am able to see things clearer than previously. Being human is extremely vulnerable, but it does have its perks. Now I can tell when Dean is troubled.
Turning on the water, Castiel got in the shower and drew the curtain like Dean had demonstrated.
Dean never said the warm water running on my skin would feel so good. Yes, this is another perk to humanity. This is going on the list, above buttered toast.
Castiel poured the shampoo into a puddle on his hand. Lathering it into his scalp, with the water cascading down his back, he relaxed and was at peace for the first time since he'd lost his grace.
And here I thought humans never had a peaceful moment.
Castiel closed his eyes and let the water beat down on his face.
After finishing with the final rinse, Castiel stepped out of the shower.
I'm supposed to dry myself with this towel.
Castiel stared at the towel sitting next to the sink, unsure how to do it. Thinking back to what Dean had told him, he was supposed to wrap it around himself.
That was what he did, but before going to his room, he went downstairs to ask Dean whether he was drying off correctly.
"OH GOD, CAS!"
"What?"
"Wrap the towel around your waist, not your shoulders!" Dean closed his eyes and rubbed them. "Jeez, Cas, I'm scarred for life now!"
"Castiel looked down and moved the towel around his waist.
"Is this correct, Dean?" He moved Dean's hand away from his eyes. Tentatively, Dean opened his eyes.
"Yeah." Dean looked up at Castiel from his seat on the recliner in the living room to see Castiel looking at him apologetically, curiously, and... something else Dean couldn't quite put his finger on. Dean cleared his throat and got up once he realized what the third part of Castiel's expression was.
"Cas, you don't need my help to put on clothes, do you?" He crossed his arms across his chest.
"No, Dean. What clothes do you want me to put on?"
Damn, Cas, you're so dependent on me. What's a powerful angel like you doing in a place like-
NO DEAN STOP IT JUST HELP WITH THE CLOTHES OKAY JUST STOP
He does look nice just in that little towel it matches his eyes-
DEAN WHAT THE HELL MAN JUST GIVE HIM CLOTHES AND GO GET SOME BEERS
and his
STOP STOP STOP DON'T EVEN
"Sure, Cas, I think I have some clothes I don't wear much anymore. You can use those." Dean diverted his eyes and practically ran upstairs.
Castiel followed him, holding the towel up.
"Here, Cas, these should fit," Dean tossed a pile of clothes on his bed. "I'm going to the gas station, I need to fill up the car and we need more beer. There's a green book in a box downstairs, you can just follow the instructions, it should be easy." Dean averted his eyes from Castiel and left the room.
"Okay, Dean."
As the door closed behind him, Castiel began to get dressed. It was an outfit remarkably similar to his classic outfit, but there was a picture of Dean on a fake Homeland Security ID card in the pocket of the slacks. He buttoned up the white shirt and went downstairs.