New Delhi, June 26 -- Former US President John F Kennedy got a flight attendant pregnant and allegedly paid for her abortion, just months after his wife, Jackie Kennedy, gave birth to their daughter, Caroline, according to a new book.

The claims were made in JFK: Public, Private, Secret, an upcoming biography by J Randy Taraborrelli. The book, excerpts of which were shared by People, details Kennedy's alleged affair with Joan Lundberg, a 23-year-old flight attendant he met in 1956, when he was a US senator.

In 1958, shortly after Caroline Kennedy's birth, Lundberg reportedly informed JFK she was pregnant. According to the book, Kennedy offered no support beyond a brief phone call and sent her $400 with instructions suggesting she get an...