diff --git a/lib/jsonapi-serializers.rb b/lib/jsonapi-serializers.rb
index 2979585..5a7b49b 100644
--- a/lib/jsonapi-serializers.rb
+++ b/lib/jsonapi-serializers.rb
@@ -1,6 +1,7 @@
 require "jsonapi-serializers/version"
 require "jsonapi-serializers/attributes"
 require "jsonapi-serializers/serializer"
+require "jsonapi-serializers/dynamic_proxy_object"
 
 module JSONAPI
   module Serializer
diff --git a/lib/jsonapi-serializers/dynamic_proxy_object.rb b/lib/jsonapi-serializers/dynamic_proxy_object.rb
new file mode 100644
index 0000000..c0272bf
--- /dev/null
+++ b/lib/jsonapi-serializers/dynamic_proxy_object.rb
@@ -0,0 +1,24 @@
+module JSONAPI
+	class DynamicProxyObject < BasicObject
+
+    def initialize(target)
+      @cache = {}
+      @target = target
+    end
+
+    def class
+      @target.class
+    end
+
+    def cache_key(name, args)
+      "#{name}_#{args.hash}"
+    end
+
+    def method_missing(name, *args, &block)
+      key = cache_key(name, args)
+      @cache[key] ||= @target.send(name, *args, &block)
+      @cache[key]
+    end
+  
+  end
+end
\ No newline at end of file
diff --git a/lib/jsonapi-serializers/serializer.rb b/lib/jsonapi-serializers/serializer.rb
index 3e55158..ecc04fd 100644
--- a/lib/jsonapi-serializers/serializer.rb
+++ b/lib/jsonapi-serializers/serializer.rb
@@ -120,7 +120,7 @@ def relationships
           end
 
           if @_include_linkages.include?(formatted_attribute_name) || attr_data[:options][:include_data]
-            object = has_one_relationship(attribute_name, attr_data)
+            object = JSONAPI::Serializer.proxy_objects(has_one_relationship(attribute_name, attr_data))
             if object.nil?
               # Spec: Resource linkage MUST be represented as one of the following:
               # - null for empty to-one relationships.
@@ -156,7 +156,7 @@ def relationships
           # http://jsonapi.org/format/#document-structure-resource-relationships
           if @_include_linkages.include?(formatted_attribute_name) || attr_data[:options][:include_data]
             data[formatted_attribute_name]['data'] = []
-            objects = has_many_relationship(attribute_name, attr_data) || []
+            objects = JSONAPI::Serializer.proxy_objects(has_many_relationship(attribute_name, attr_data) || [])
             objects.each do |obj|
               related_object_serializer = JSONAPI::Serializer.find_serializer(obj, @options)
               data[formatted_attribute_name]['data'] << {
@@ -252,7 +252,17 @@ def self.find_serializer(object, options)
       find_serializer_class(object, options).new(object, options)
     end
 
+    def self.proxy_objects(objects)
+      return nil unless objects
+      if objects.respond_to?(:map)
+        objects.map { |obj| DynamicProxyObject.new(obj) }
+      else
+        DynamicProxyObject.new(objects)
+      end
+    end
+
     def self.serialize(objects, options = {})
+      objects = proxy_objects(objects)
       # Normalize option strings to symbols.
       options[:is_collection] = options.delete('is_collection') || options[:is_collection] || false
       options[:include] = options.delete('include') || options[:include]
@@ -462,12 +472,12 @@ def self.find_recursive_relationships(root_object, root_inclusion_tree, results,
         if serializer.has_one_relationships.has_key?(unformatted_attr_name)
           is_valid_attr = true
           attr_data = serializer.has_one_relationships[unformatted_attr_name]
-          object = serializer.has_one_relationship(unformatted_attr_name, attr_data)
+          object = proxy_objects(serializer.has_one_relationship(unformatted_attr_name, attr_data))
         elsif serializer.has_many_relationships.has_key?(unformatted_attr_name)
           is_valid_attr = true
           is_collection = true
           attr_data = serializer.has_many_relationships[unformatted_attr_name]
-          object = serializer.has_many_relationship(unformatted_attr_name, attr_data)
+          object = proxy_objects(serializer.has_many_relationship(unformatted_attr_name, attr_data))
         end
 
         if !is_valid_attr
diff --git a/spec/dynamic_proxy_object_spec.rb b/spec/dynamic_proxy_object_spec.rb
new file mode 100644
index 0000000..d2ab16b
--- /dev/null
+++ b/spec/dynamic_proxy_object_spec.rb
@@ -0,0 +1,13 @@
+describe JSONAPI::DynamicProxyObject do
+  it 'should delegate methods to target and cache results' do
+    target = double('target')
+    expect(target).to receive(:foo).and_return('bar')
+    expect(target).to receive(:foo).with(param1: '1', param2: 2).and_return('bar2')
+
+    proxy = JSONAPI::DynamicProxyObject.new(target)
+    expect(proxy.foo).to eq('bar')
+    expect(proxy.foo).to eq('bar')
+    expect(proxy.foo(param1: '1', param2: 2)).to eq('bar2')
+    expect(proxy.foo(param1: '1', param2: 2)).to eq('bar2')
+  end
+end
\ No newline at end of file