一个主键是否可以使用Entity Framework在另一个表中作为外键调用两次？

public class Order
{
    public int OrderId { get; set; }
    public string OrderName { get; set; }
    public int CustomerId { get; set; }
    public virtual Customer Customer { get; set; }
}

public class Customer
{
    public int CustomerId { get; set; }
    public string CustomerName { get; set; }
    public virtual ICollection<Order> Orders { get; set; }
}

public class MyDbContext : DbContext
{
    public DbSet<Order> Orders { get; set; }
    public DbSet<Customer> Customers { get; set; }

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Order>()
            .HasRequired(o => o.Customer)
            .WithMany(c => c.Orders)
            .HasForeignKey(o => o.CustomerId)
            .WillCascadeOnDelete(false);
    }
}

var order = dbContext.Orders.FirstOrDefault();
var customer = order.Customer;