VIEWERS who tune in next Monday to see porn star Ginger Lynn on the WB’s “Skin” – Jerry Bruckheimer’s racy drama set in L.A.’s San Fernando Valley – will see thinly veiled events from her real life. Lynn plays Amber Synn, a 40-year-old recovering drug addict who’s retired after helping build an X-rated empire and getting knocked up by a porn baron, portrayed by Ron Silver. Recovering cocaine addict Lynn, 40, was Vivid Video’s first contract player and once dated Vivid president Stephen Hirsch. “You cannot think this character is not based on me, and you cannot think Ron’s character is not based on Hirsch,” Lynn tells PAGE SIX’s Michael Rovner