diff --git a/stackexchange/core.py b/stackexchange/core.py
index 26c2f0b..26c113d 100644
--- a/stackexchange/core.py
+++ b/stackexchange/core.py
@@ -24,7 +24,7 @@ def __init__(self, json, site, skip_ext = False):
         transfer = self.transfer if hasattr(self, 'transfer') else ()
         fields = ([A + (None,) for A in alias if len(A) == 2] +
                   [(k, k, None) for k in transfer if isinstance(k, str)] +
-                  [A for A in alias if len(A) == 3] + 
+                  [A for A in alias if len(A) == 3] +
                   [(k[0],) + k for k in transfer if not isinstance(k, str)])
 
         for dest, key, transform in fields:
@@ -45,10 +45,10 @@ def __init__(self, json, site, skip_ext = False):
         if hasattr(self, '_extend') and not skip_ext:
             self._extend(self.json_ob, site)
 
-    def fetch(self):
+    def fetch(self, **kwargs):
         """Fetches all the data that the model can describe, not just the attributes which were specified in the original response."""
         if hasattr(self, 'fetch_callback'):
-            res = self.fetch_callback(self)
+            res = self.fetch_callback(self, **kwargs)
 
             if isinstance(res, dict):
                 self.__init__(res, self.site)
@@ -184,7 +184,7 @@ def __init__(self, code = UNKNOWN, name = None, message = None):
         self.code = code
         self.name = name
         self.message = message
-    
+
     def __str__(self):
         if self.code == self.UNKNOWN:
             return 'unrecognised error'
@@ -356,7 +356,7 @@ def paginated_to_resultset(site, json, typ, collection, params):
         # no longer variable in v2.x, having been replaced by a generic field
         # 'items'. To perhaps be removed completely at some later point.
         items = []
-        
+
         # create strongly-typed objects from the JSON items
         for json_item in json['items']:
             json_item['_params_'] = params[-1] # convenient access to the kw hash
diff --git a/stackexchange/models.py b/stackexchange/models.py
index f7c510a..f6ac3a7 100644
--- a/stackexchange/models.py
+++ b/stackexchange/models.py
@@ -167,15 +167,15 @@ def owner(self):
         if self._owner is None:
             self._owner = self.site.user(self.owner_id)
         return self._owner
-    
+
     @property
     def question(self):
         if self._question is None:
             self._question = self.site.question(self.question_id)
         return self._question
 
-    def fetch_callback(self, _, site):
-        return site.answer(self.id)
+    def fetch_callback(self, _, site, **kwargs):
+        return site.answer(self.id, **kwargs)
 
     def __unicode__(self):
         return u'Answer %d' % self.id
@@ -200,7 +200,7 @@ class Question(JSONModel):
         'body_markdown', 'is_answered', 'link', 'answer_count', 'can_close',
         'can_flag', 'close_vote_count', 'closed_reason', 'comment_count',
         'community_owned_date', 'delete_vote_count', 'down_vote_count',
-        'downvoted', 'favorite_count', 'favorited', 'is_answered', 
+        'downvoted', 'favorite_count', 'favorited', 'is_answered',
         'accepted_answer_id', 'question_id', 'bounty_amount', 'upvoted',
         'reopen_vote_count', 'share_link', 'up_vote_count',
         ('creation_date', UNIXTimestamp),
@@ -217,7 +217,7 @@ class Question(JSONModel):
         ('comments', LazySequenceField(Comment, 'questions/{id}/comments', filter = '!-*7AsUyrEan0')),
         ('answers', ListOf(ModelRef(Answer))))
     alias = (('id', 'question_id'),
-             ('accepted_answer', 'accepted_answer_id', IDPartial(Answer, lambda a: a.site.answer(a.id))))
+             ('accepted_answer', 'accepted_answer_id', IDPartial(Answer, lambda a, **kwargs: a.site.answer(a.id, **kwargs))))
 
     def _extend(self, json, site):
         if hasattr(json, 'owner') and 'user_id' in json.owner:
@@ -232,8 +232,8 @@ def _extend(self, json, site):
 
         self.url = 'http://' + self.site.root_domain + '/questions/' + str(self.id)
 
-    def fetch_callback(self, _):
-        return self.site.question(self.id)
+    def fetch_callback(self, _, **kwargs):
+        return self.site.question(self.id, **kwargs)
 
     def linked(self):
         return self.site.questions(linked_to = self.id)