I wasn't talking about a texture. Plastic Wrap is the name of a filter that comes with Photoshop. You would just bring your figure into Photoshop, select the area of skin you want to appear wet, and run the plastic wrap filter on it. See attached for a quickie example. The figure on the right is just a copy of the one on the left. The only difference being I ran the plastic wrap filter on the figure on the left.