gistfile1.aw

class User extends AppModel {
    public $name = 'User';
    public $belongsTo = array(
        'FriendOne' => array(
            'className'    => 'Friend',
            'foreignKey'   => 'friend_1_id',
        ),
        'FriendTwo' => array(
            'className'    => 'Friend',
            'foreignKey'   => 'friend_2_id',
        )
        
        ..

    );
}