Close Encounters of the Fifth Kind: Shusei Nagaoka (NSFW '70s sci-fi illustration)

View larger size here. Lovingly scanned and shared in the Boing Boing Flickr Pool by reader v. valenti. Art by Japanese illustrator Shusei Nagaoka, whose sci-fi illustrations were popular during the 1970s and '80s, and graced album covers by ELO, Earth, Wind & Fire, and Deep Purple. There's an awesome little archive of his work here.