diff --git a/src/Jenssegers/Mongodb/Eloquent/HybridRelations.php b/src/Jenssegers/Mongodb/Eloquent/HybridRelations.php
index b6f898632..6887817c2 100644
--- a/src/Jenssegers/Mongodb/Eloquent/HybridRelations.php
+++ b/src/Jenssegers/Mongodb/Eloquent/HybridRelations.php
@@ -22,7 +22,7 @@ trait HybridRelations {
     public function hasOne($related, $foreignKey = null, $localKey = null)
     {
         // Check if it is a relation with an original model.
-        if ($related instanceof Model)
+        if (! is_subclass_of($related, 'Jenssegers\Mongodb\Model'))
         {
             return parent::hasOne($related, $foreignKey, $localKey);
         }
@@ -49,7 +49,7 @@ public function hasOne($related, $foreignKey = null, $localKey = null)
     public function morphOne($related, $name, $type = null, $id = null, $localKey = null)
     {
         // Check if it is a relation with an original model.
-        if ($related instanceof Model)
+        if (! is_subclass_of($related, 'Jenssegers\Mongodb\Model'))
         {
             return parent::morphOne($related, $name, $type, $id, $localKey );
         }
@@ -76,7 +76,7 @@ public function morphOne($related, $name, $type = null, $id = null, $localKey =
     public function hasMany($related, $foreignKey = null, $localKey = null)
     {
         // Check if it is a relation with an original model.
-        if ($related instanceof Model)
+        if (! is_subclass_of($related, 'Jenssegers\Mongodb\Model'))
         {
             return parent::hasMany($related, $foreignKey, $localKey);
         }
@@ -103,7 +103,7 @@ public function hasMany($related, $foreignKey = null, $localKey = null)
     public function morphMany($related, $name, $type = null, $id = null, $localKey = null)
     {
         // Check if it is a relation with an original model.
-        if ($related instanceof Model)
+        if (! is_subclass_of($related, 'Jenssegers\Mongodb\Model'))
         {
             return parent::morphMany($related, $name, $type, $id, $localKey);
         }
@@ -144,7 +144,7 @@ public function belongsTo($related, $foreignKey = null, $otherKey = null, $relat
         }
 
         // Check if it is a relation with an original model.
-        if ($related instanceof Model)
+        if (! is_subclass_of($related, 'Jenssegers\Mongodb\Model'))
         {
             return parent::belongsTo($related, $foreignKey, $otherKey, $relation);
         }
@@ -235,7 +235,7 @@ public function belongsToMany($related, $collection = null, $foreignKey = null,
         }
 
         // Check if it is a relation with an original model.
-        if ($related instanceof Model)
+        if (! is_subclass_of($related, 'Jenssegers\Mongodb\Model'))
         {
             return parent::belongsToMany($related, $collection, $foreignKey, $otherKey, $relation);
         }
diff --git a/src/Jenssegers/Mongodb/Model.php b/src/Jenssegers/Mongodb/Model.php
index 03bd49ec2..449d77529 100644
--- a/src/Jenssegers/Mongodb/Model.php
+++ b/src/Jenssegers/Mongodb/Model.php
@@ -199,6 +199,16 @@ protected function getDateFormat()
         return $this->dateFormat ?: 'Y-m-d H:i:s';
     }
 
+    /**
+     * Get a fresh timestamp for the model.
+     *
+     * @return MongoDate
+     */
+    public function freshTimestamp()
+    {
+        return new MongoDate;
+    }
+
     /**
      * Get the table associated with the model.
      *
diff --git a/src/Jenssegers/Mongodb/Query/Builder.php b/src/Jenssegers/Mongodb/Query/Builder.php
index 58ed14124..531197eba 100644
--- a/src/Jenssegers/Mongodb/Query/Builder.php
+++ b/src/Jenssegers/Mongodb/Query/Builder.php
@@ -147,7 +147,7 @@ public function find($id, $columns = [])
      */
     public function get($columns = [])
     {
-        return parent::get($columns);
+        return $this->getFresh($columns);
     }
 
     /**
@@ -349,6 +349,16 @@ public function aggregate($function, $columns = [])
         }
     }
 
+    /**
+     * Determine if any rows exist for the current query.
+     *
+     * @return bool
+     */
+    public function exists()
+    {
+        return ! is_null($this->first());
+    }
+
     /**
      * Force the query to only return distinct results.
      *
diff --git a/tests/QueryTest.php b/tests/QueryTest.php
index 2db648d8b..9b3593257 100644
--- a/tests/QueryTest.php
+++ b/tests/QueryTest.php
@@ -206,6 +206,12 @@ public function testCount()
         $this->assertEquals(6, $count);
     }
 
+    public function testExists()
+    {
+        $this->assertFalse(User::where('age', '>', 37)->exists());
+        $this->assertTrue(User::where('age', '<', 37)->exists());
+    }
+
     public function testSubquery()
     {
         $users = User::where('title', 'admin')->orWhere(function ($query)