Rainbow Party is a free iPhone app that lets you cover any photo with multi-colored kisses.

Now featuring 11 different shades of lipstick!

Features:

Take a picture with your built-in camera or easily load in a friend's pic from Facebook
Mix n match from eleven different lipstick colors
Tap the screen to lay kisses!
Realistic kissy sounds with every smooch
Background music guaranteed to get you in the mood
Send completed photos to Facebook or Twitter

Try it for yourself! Search "rainbow party" in the iPhone app store or click here for an iTunes link.