Letters claim that George Orwell’s wife let him offer sex to female friend

Late British author George Orwell wrote to a female friend named Brenda Salkeld to say that they could have sex twice a year with his wife's approval, a set of letters bought by Orwell's son show. The letters showed George used Salkeld as a sounding board for his ideas. George continued to write to Salkeld until 1949, his son revealed.