diff --git a/README.md b/README.md
index 7e609bf..fd28fd6 100755
--- a/README.md
+++ b/README.md
@@ -36,8 +36,8 @@ $ npm install ig-object
 Or just download and drop [object.js](object.js) into your code.
 
 
-## Basic usage
 
+## Basic usage
 
 Include the code, this is compatible with both [node's](https://nodejs.org/) and
 [RequireJS'](https://requirejs.org/) `require(..)`
@@ -64,6 +64,7 @@ var B = object.Constructor('B', {__proto__: A.prototype})
 var C = object.Constructor('C', Object.create(B.prototype))
 ```
 
+Now we can test this...
 ```javascript
 var c = C() // or new C()
 
@@ -192,6 +193,46 @@ handling.
   as restrict the use-cases for the constructor.
 
 
+
+## Advanced cases
+
+
+### Inheriting from native objects
+
+```javascript
+var myArray = object.Constructor('myArray', Array, {
+	__proto__: Array.prototype,
+
+	// ...
+})
+```
+
+All special methods and protocols except for `.__new__(..)` will work here 
+without change.
+
+
+### Extending native `.constructor(..)`
+
+Extending `.constructor(..)` is not necessary in most cases as 
+`.__init__(..)` will do everything generally needed, except for instance 
+replacement.
+
+```javascript
+var myArray = object.Constructor('myArray', Array, {
+	__proto__: Array.prototype,
+
+	__new__: function(context, ...args){
+		var obj = Reflect.construct(myArray.__proto__, args, myArray)
+
+		// ...
+
+		return obj
+	},
+})
+```
+
+
+
 ## Components
 
 Get sources for attribute
@@ -267,6 +308,7 @@ A shorthand to this is `Constructor.__rawinstance__(context, ..)`.
 
 Define an object constructor
 ```
+Constructor(<name>)
 Constructor(<name>, <prototype>)
 Constructor(<name>, <class-prototype>, <prototype>)
 	-> <constructor>
diff --git a/object.js b/object.js
index f73b2d5..d01e812 100755
--- a/object.js
+++ b/object.js
@@ -286,6 +286,26 @@ function(root, ...objects){
 //---------------------------------------------------------------------
 // Constructor...
 
+// Make an object extending target...
+//
+// 	extend(target)
+// 		-> object
+//
+// 	extend(target, object)
+// 		-> object
+//
+//
+// NOTE: this will modify the input object.
+//
+// XXX EXPERIMENTAL...
+var extend = 
+module.extend =
+function(target, obj){
+	obj = obj || {}
+	obj.__proto__ = target.prototype
+	return obj }
+
+
 // Make an uninitialized instance object...
 //
 // 	makeRawInstance(context, constructor, ...)
@@ -343,6 +363,9 @@ function(context, constructor, ...args){
 		// prototype defines .__new__(..)...
 		constructor.prototype.__new__ instanceof Function ?
 			constructor.prototype.__new__(context, ...args)
+		// native constructor...
+		: /\[native code\]/.test(constructor.toString()) ?
+			Reflect.construct(constructor, args)
 		// callable instance -- prototype is a function...
 		// NOTE: we need to isolate the .prototype from instances...
 		: constructor.prototype instanceof Function ?
@@ -359,15 +382,22 @@ function(context, constructor, ...args){
 					return constructor.prototype.__call__
 						.call(obj, this, ...arguments) },
 				constructor.prototype.__call__)
+		// use parent's constructor...
+		// XXX EXPERIMENTAL...
+		// XXX do a better test...
+		: (constructor.__proto__ instanceof Function 
+				&& constructor.__proto__ !== (function(){}).__proto__) ?
+			Reflect.construct(constructor.__proto__, [], constructor)
 		// default object base...
-		: {} 
+		: Reflect.construct(Object, [], constructor)
 
-	// link to prototype chain...
-	obj.__proto__ = constructor.prototype
-	Object.defineProperty(obj, 'constructor', {
-		value: constructor,
-		enumerable: false,
-	})
+	// link to prototype chain, if not done already...
+	if(obj.__proto__ !== constructor.prototype){
+		obj.__proto__ = constructor.prototype
+		Object.defineProperty(obj, 'constructor', {
+			value: constructor,
+			enumerable: false,
+		}) }
 
 	return obj }
 
@@ -504,8 +534,8 @@ module.Constructor =
 module.C =
 function Constructor(name, a, b){
 	var proto = b == null ? a : b
-	var cls_proto = b == null ? b : a
 	proto = proto || {}
+	var cls_proto = b == null ? b : a
 
 	// the actual constructor...
 	var _constructor = function Constructor(){
@@ -529,7 +559,9 @@ function Constructor(name, a, b){
 				.replace(/Constructor/g, name))
 	// set .toString(..)...
 	// NOTE: do this only if .toString(..) is not defined by user...
-	;((cls_proto || {}).toString() == ({}).toString())
+	// XXX revise this...
+	;((cls_proto || {}).toString === Function.toString
+			|| (cls_proto || {}).toString === ({}).toString)
 		&& Object.defineProperty(_constructor, 'toString', {
 			value: function(){ 
 				var args = proto.__init__ ?
@@ -553,7 +585,6 @@ function Constructor(name, a, b){
 		|| (_constructor.__rawinstance__ = 
 			function(context, ...args){
 				return makeRawInstance(context, this, ...args) })
-
 	// set .prototype.constructor
 	Object.defineProperty(_constructor.prototype, 'constructor', {
 		value: _constructor,
diff --git a/package.json b/package.json
index 20b96ed..c999356 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ig-object",
-  "version": "2.6.0",
+  "version": "2.7.0",
   "description": "",
   "main": "object.js",
   "scripts": {