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Movies like SPF 2000 (1997)

In this hilarious homage to 1970's Italian sexploitation films, Pucci and JJ sunbathe by a creek, bored, until they spot Gretchen and her delectable son, Kip. They all become quick friends and rub sun protection lotion on each other, when suddenly an alien named Suroh appears. This visitor offers a more potent sunscreen, SPF 2000, to be shared by the entire human race, in light of the earth's decreasing ozone layer. Suroh learns the sensual aspects of applying lotion to human bodies, starting with them.