diff --git a/lib/reverse_words.rb b/lib/reverse_words.rb
index cb3cc8a..113b1f5 100644
--- a/lib/reverse_words.rb
+++ b/lib/reverse_words.rb
@@ -1,4 +1,45 @@
 # A method to reverse each word in a sentence, in place.
+require 'pry'
 def reverse_words(my_words)
-  raise NotImplementedError
+  i = 0
+  j = 0
+
+  if my_words == nil || my_words.length == 1 || my_words.length == 0
+    return
+  end
+
+  loop do
+        # binding.pry
+    until my_words[i] != " "
+      i += 1
+    end
+    j = i
+    until my_words[j + 1] == " " || j == (my_words.length - 1)
+      j += 1
+    end
+    # binding.pry
+    string_reverse(my_words, i, j)
+    i = j + 2
+    # binding.pry
+    break if i >= my_words.length - 1
+  end
+  return
+end
+
+
+def string_reverse(my_string, i, j)
+  if my_string == nil || i == j
+    return
+  end
+  temp = ""
+  temp2 = ""
+  while i < j do
+    temp = my_string[i]
+    temp2 = my_string[j]
+    my_string[j] = temp
+    my_string[i] = temp2
+    i += 1
+    j -= 1
+  end
+  return
 end