diff --git a/Socialmetrica.package/NitterUser.class/instance/newestTweet.st b/Socialmetrica.package/NitterUser.class/instance/newestTweet.st
new file mode 100644
index 0000000..5a5dec1
--- /dev/null
+++ b/Socialmetrica.package/NitterUser.class/instance/newestTweet.st
@@ -0,0 +1,4 @@
+accessing
+newestTweet
+
+	^ self messages newestOf: self id
\ No newline at end of file
diff --git a/Socialmetrica.package/TweetsCollection.class/instance/newestOf..st b/Socialmetrica.package/TweetsCollection.class/instance/newestOf..st
new file mode 100644
index 0000000..0a5e5ee
--- /dev/null
+++ b/Socialmetrica.package/TweetsCollection.class/instance/newestOf..st
@@ -0,0 +1,7 @@
+accessing
+newestOf: userId 
+
+	self messages ifNil: [ ^ nil ].
+	self messages ifEmpty: [ ^ nil ].
+	^ ((self select: [ :tweet | tweet authorId = userId ])
+		select: [ :tweet | tweet created = (((self select: [ :each | each authorId = userId ]) collect: [ :each | each created ]) asSortedCollection last)]) first
\ No newline at end of file