diff --git a/src/main/java/org/ntlab/nemophila/models/accounts/FriendManager.java b/src/main/java/org/ntlab/nemophila/models/accounts/FriendManager.java
index 24e464c..49a6437 100644
--- a/src/main/java/org/ntlab/nemophila/models/accounts/FriendManager.java
+++ b/src/main/java/org/ntlab/nemophila/models/accounts/FriendManager.java
@@ -8,13 +8,17 @@
     private ArrayList<Account> requesting = new ArrayList<>();
     private ArrayList<Account> requested = new ArrayList<>();
 
-    public void addFriend(Account friend) {}
+    public void addFriend(Account friend) {
+        friends.add(friend);
+    }
 
     public HashSet<Account> getFriends() {
         return friends;
     }
 
-    public void removeFriend(Account friend) {}
+    public void removeFriend(Account friend) {
+        friends.remove(friend);
+    }
 
     public void addRequesting(Account to) {
         requesting.add(to);