[Closed] advanced morphing/scripting issue

hello there
I have a problem with morphing/rigging, I think my problem is best discribed with an example, when my character bends his head forward i want it to be some wrinkles and bulging of the skin under his chin. I have created a morph target for it. What I’m wondering is if someone can tell how to make him automatically morph in to that shape when his head is bent forward. He also has clothes so I want to do the same thing with them when he bends his leg etc. Help would be extremely apriciated!!!