Work Text:
No one else noticed the splash. Not the other kids at the pool. Not the harried mom, digging in her bag. Not even the lifeguard, flirting with a bikini-clad girl.
Dean noticed. He noticed everything.
In a flash, he dove into the deep end, reaching to grab the boy and haul him to the surface, both of them spluttering.
Dean heard a woman scream “Sam!” Then the lifeguard yelled, “Hey!”
As a crowd formed, Dean ducked underwater and swam away. It didn’t matter which of the many worlds he was in, he would always look out for his little brother.