The Chain Reaction (1980) is an independent Australian film about an engineer badly injured in an accident caused by an earthquake. There’s a risk of nuclear contamination, but speaking of a chain reaction, there’s Arna-Maria Winchester, who is firing with both barrels in this movie. She’s an older blonde, but could teach the younger generation a thing or two about skin. That’s because she strips down naked and shows off her three Bs. The sight of those wonders is enough to create a chain reaction in our pants that starts with our penis getting as hard as a chain and ends with a sticky reaction that will send our trousers to the cleaners.