Does it count if I only read summaries of both works, not the works itself?
"A true story" is a parody on the "travelogue" that were popular in ancient Greece, like Homer's Odyssey and Illiad. 800 years later, they had a resurgence in the Roman Empire, like when Virgil wrote the Aeneid. Still 200 years later, A True Story was written by Lucian.
In the preface, Lucian complains that the genre was ruined by authors making up unbelievable tales to trick their dumb readership. So he thinks it better to just admit that all he says is a lie.
The story goes on how Lucian then set sail across the Atlantic, got caught in a storm so terrible it blew him to outer space, and meet the all-male civilisation that lives on the moon, who carry their children through the calf of their leg.
Lucian and his crew return to Earth, get swallowed by a whale, explore the Islands of the blessed, see the Sinners being punished (the ones who lied in their stories being punished the hardest) and reach a distant continent. Lucian says what happened there will be shared in the sequel, which a comment describes as the biggest lie of all.