Sweet deal!!!!
Getting 2 juveniles of any type of clown will almost assure you of getting a mated pair....as long as they came from the same tank. If they came from different tanks, there is a VERY remote chance that you get two of them that have already established dominance and started changing to female. This is very remote, but possible. If you get them from two different tanks, make sure that it least one of them is not the largest in it's respective tank.