It was Alphonses birthday. Edward asked his brother "What do you want to do for your birthday, Al"?
Alphonse thought for a moment. He scratched his metal head in thought. (This was just a gesture of habit of course because Alphonse can't really have itches when he is an armor boy.)
"I think Brother I would like to go camping," he says with a silver smile.
"Ugh CAMPING?" Edward exclams. "What is the fun of going out in the woods with no food no water no bed to sleep in?" (He forgot Alphons doesn't have these things in real life anyway because his body is not a human torso)
Alphonse pouts looks down and kicks at the dirt, being sad. His metal joints make creeking sounds. It sounds like his armor is crying.
"I was only kidding Al haha!" Edward recovers fast to not make his brother sad. "Of course we can go camping who do you want to invite? The more the marrier right?"
Alphonse's eyes light up metaphorically. "Yes Brother I knew you'd think so! Let's see we can bring... Who can we bring? Our only friend is Wirny and she is in Rushvalley."
"Oh I forgot we have no friends unless you want to invite the Kernel Doushebag."
"Roy is busy he won't want to come with. Let's go camping just us two."
Then there is the Prince jumping in through the window "Did you say camping?" Ling says "I know all about camping, it is so much fun can I come please?"
"Idiot Prince" Edward whispers before he can say no Alphonse invites him.
So the three they will go camping out in the woods behind Dublith