2 relationships to same model | Laravel | Page 1

What would be the proper way to configure the (one to one) relationships in this setup? Not entirely sure what approach to take :/

class Order extends Model {
    // This model has billing_address_id and shipping_address_id fields
    ...
    public function billing_address() {
        return $this->belongsTo(OrderAddress::class);
    }
    public function shipping_address() {
        return $this->belongsTo(OrderAddress::class);
    }
    // These are usually the same, but can link to 2 different OrderAddress records
    ...
}

class OrderAddress extends Model {
    ...
    // A OrderAddress can only be used by a single Order
    public function order() {
        return $this->hasOne(Order::class, 'i cant use multiple foreign keys');
    }

Thanks!

#2 relationships to same model