DDD. Include multiple Related Entities using eager loading

gistfile1.txt

public static IQueryable<T> IncludeMultiple<T>(this IQueryable<T> query, params Expression<Func<T, object>>[] includes)
    where T : class
{
    if (includes != null)
    {
        query = includes.Aggregate(query, 
                  (current, include) => current.Include(include));
    }

    return query;
}

var query = context.Customers
                   .IncludeMultiple(
                       c => c.Address,
                       c => c.Orders.Select(o => o.OrderItems));