Amber Portwood played the loving mom Friday outside her Indiana home.  The controversial Teen Mom star welcomed her ex, Gary Shirley into the house, so he could deliver a present to their daughter Leah, Breaking Celebrity News has learned.

But as the scene played out the Teen Mom cameras rolled, and as soon as it was all in the can, Shirley drove off.

That's when Amber's new boyfriend Clinton Yunker appeared!  He then spent hours helping Amber put up Christmas decorations, with some of that fun captured for the MTV series as well.