No problem at all, just let us know it's two people. When the Security Alert shows up on the site, write in the box "Is the other account someone else's?" who the other account belongs to and click Send request. Then play at the same time as your brother, each from your own connection (for example, one of you on mobile data), for a few minutes. The system detects that automatically and clears both accounts. If it doesn't happen within 7 days, a GM reviews it manually.
