diff --git a/examples/authentication/api/session_token_with_username_and_password.php b/examples/authentication/api/session_token_with_username_and_password.php
new file mode 100644
index 00000000..dd073408
--- /dev/null
+++ b/examples/authentication/api/session_token_with_username_and_password.php
@@ -0,0 +1,29 @@
+<?php
+/**
+ * This file is part of the Tmdb PHP API created by Michael Roterman.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @package Tmdb
+ * @author Michael Roterman <michael@wtfz.net>
+ * @copyright (c) 2013, Michael Roterman
+ * @version 0.0.1
+ */
+require_once '../../../vendor/autoload.php';
+require_once '../../../apikey.php';
+
+$token  = new \Tmdb\ApiToken(TMDB_API_KEY);
+$client = new \Tmdb\Client($token);
+
+$requestToken = new \Tmdb\RequestToken(TMDB_REQUEST_TOKEN);
+
+$validatedRequestToken = $client->getAuthenticationApi()->validateRequestTokenWithLogin(
+    $requestToken,
+    TMDB_USERNAME,
+    TMDB_PASSWORD
+);
+
+$sessionToken = $client->getAuthenticationApi()->getNewSession($validatedRequestToken);
+
+var_dump($sessionToken);
diff --git a/examples/authentication/model/session_token_with_username_and_password.php b/examples/authentication/model/session_token_with_username_and_password.php
new file mode 100644
index 00000000..63d3f911
--- /dev/null
+++ b/examples/authentication/model/session_token_with_username_and_password.php
@@ -0,0 +1,31 @@
+<?php
+/**
+ * This file is part of the Tmdb PHP API created by Michael Roterman.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @package Tmdb
+ * @author Michael Roterman <michael@wtfz.net>
+ * @copyright (c) 2013, Michael Roterman
+ * @version 0.0.1
+ */
+require_once '../../../vendor/autoload.php';
+require_once '../../../apikey.php';
+
+$token  = new \Tmdb\ApiToken(TMDB_API_KEY);
+$client = new \Tmdb\Client($token);
+
+$client->setLogging(true, '/www/dev/php-tmdb-api/tmdb.log');
+
+$requestToken = new \Tmdb\RequestToken(TMDB_REQUEST_TOKEN);
+
+$authenticationRepository = new \Tmdb\Repository\AuthenticationRepository($client);
+
+$sessionToken = $authenticationRepository->getSessionTokenWithLogin(
+    $requestToken,
+    TMDB_USERNAME,
+    TMDB_PASSWORD
+);
+
+var_dump($sessionToken);
diff --git a/lib/Tmdb/Api/Authentication.php b/lib/Tmdb/Api/Authentication.php
index 58ad244f..2078326d 100644
--- a/lib/Tmdb/Api/Authentication.php
+++ b/lib/Tmdb/Api/Authentication.php
@@ -13,6 +13,7 @@
 namespace Tmdb\Api;
 
 use Tmdb\Exception\UnauthorizedRequestTokenException;
+use Tmdb\RequestToken;
 
 /**
  * Class Authentication
@@ -63,8 +64,68 @@ public function authenticateRequestToken($token)
      */
     public function getNewSession($requestToken)
     {
+        if ($requestToken instanceof RequestToken) {
+            $requestToken = $requestToken->getToken();
+        }
+
         try {
             return $this->get('authentication/session/new', array('request_token' => $requestToken));
+
+            //@codeCoverageIgnoreStart
+        } catch (\Exception $e) {
+            if ($e->getCode() == 401) {
+                throw new UnauthorizedRequestTokenException("The request token has not been validated yet.");
+            }
+            //@codeCoverageIgnoreEnd
+        }
+    }
+
+    /**
+     * Helper method to validate the request_token and obtain a session_token
+     *
+     * @param $requestToken
+     * @param $username
+     * @param $password
+     * @return mixed
+     * @throws \InvalidArgumentException
+     */
+    public function getSessionTokenWithLogin($requestToken, $username, $password)
+    {
+        if ($requestToken instanceof RequestToken) {
+            $requestToken = $requestToken->getToken();
+        }
+
+        $validatedRequestToken = $this->validateRequestTokenWithLogin($requestToken, $username, $password);
+
+        if (!$validatedRequestToken['success']) {
+            throw new \InvalidArgumentException('Unable to validate the request_token, please check your credentials.');
+        }
+
+        return $this->getNewSession($validatedRequestToken['request_token']);
+    }
+
+    /**
+     * This method is used to generate a session id for user based authentication.
+     * A session id is required in order to use any of the write methods.
+     *
+     * @param  string                            $requestToken
+     * @param  string                            $username
+     * @param  string                            $password
+     * @throws UnauthorizedRequestTokenException
+     * @return mixed
+     */
+    public function validateRequestTokenWithLogin($requestToken, $username, $password)
+    {
+        if ($requestToken instanceof RequestToken) {
+            $requestToken = $requestToken->getToken();
+        }
+
+        try {
+            return $this->get('authentication/token/validate_with_login', array(
+                'username'      => $username,
+                'password'      => $password,
+                'request_token' => $requestToken
+            ));
             //@codeCoverageIgnoreStart
         } catch (\Exception $e) {
             if ($e->getCode() == 401) {
diff --git a/lib/Tmdb/Repository/AuthenticationRepository.php b/lib/Tmdb/Repository/AuthenticationRepository.php
index 809a16b9..43819581 100644
--- a/lib/Tmdb/Repository/AuthenticationRepository.php
+++ b/lib/Tmdb/Repository/AuthenticationRepository.php
@@ -12,6 +12,7 @@
  */
 namespace Tmdb\Repository;
 
+use Tmdb\Exception\UnauthorizedRequestTokenException;
 use Tmdb\Factory\AuthenticationFactory;
 use Tmdb\RequestToken;
 
@@ -52,6 +53,48 @@ public function getSessionToken(RequestToken $requestToken)
         return $this->getFactory()->createSessionToken($data);
     }
 
+    /**
+     * This method is used to validate a request_token for user based authentication.
+     * A request_token is required in order to use any of the write methods.
+     *
+     * @param  RequestToken                      $requestToken
+     * @param  string                            $username
+     * @param  string                            $password
+     * @throws UnauthorizedRequestTokenException
+     * @return mixed
+     */
+    public function validateRequestTokenWithLogin(RequestToken $requestToken, $username, $password)
+    {
+        $data = $this->getApi()->validateRequestTokenWithLogin(
+            $requestToken,
+            $username,
+            $password
+        );
+
+        return $this->getFactory()->createRequestToken($data);
+    }
+
+    /**
+     * This method is used to generate a session id for user based authentication.
+     * A session id is required in order to use any of the write methods.
+     *
+     * @param  RequestToken                      $requestToken
+     * @param  string                            $username
+     * @param  string                            $password
+     * @throws UnauthorizedRequestTokenException
+     * @return mixed
+     */
+    public function getSessionTokenWithLogin(RequestToken $requestToken, $username, $password)
+    {
+        $data = $this->getApi()->getSessionTokenWithLogin(
+            $requestToken,
+            $username,
+            $password
+        );
+
+        return $this->getFactory()->createSessionToken($data);
+    }
+
     /**
      * This method is used to generate a guest session id.
      *