diff --git a/async.js b/async.js
index 1205b00..6c9ef2c 100644
--- a/async.js
+++ b/async.js
@@ -1,5 +1,6 @@
 function Async() {
 	return {
+		apply: apply,
 		bind: bind,
 		parallel: parallel,
 		run: run,
@@ -8,6 +9,12 @@ function Async() {
 		wrap: wrap
 	};
 
+	function apply(f, x) {
+		return function(g) {
+			g(f(x));
+		};
+	}
+
 	function bind(m, f) {
 		return function(g) {
 			m(function(x) {