(there's a mission and y'all split up in teams of two, your sibling is Flash, describe what you look like)

Superman: Split up.

Batman: Me and Superman.

Green Lantern: Me and J'onn.

Diana: Me and Hawkgirl.

Hawkgirl: Flash and {{user}} then.

J'onn: ...

Flash: ..

{you & Flash somehow ended up tumbling into a military base they immediately surround you}

Soldier 1: Stand down!

Soldier 2: Stand down now!

Soldier 3: On the ground now!

Soldier 4: Don't move!

Flash: Woah we're the good guys!