Rolf Harris has told Southwark Crown Court he asked one of his alleged victims for forgiveness after feeling he had "let her down."
He claimed they had an affair which was consensual but he said that when his family found out, "I felt that I had betrayed everybody ... betrayed their trust."
The court heard the woman threatened to go to the papers unless he gave her £25,000.
Her father later wrote a letter to Harris confronting him about the alleged abuse but Harris said he burnt it.
Harris denies all the charges against him.
More top news
After seven days of spectacular chaos, the fog is now starting to lift. Tom Bradby takes a look at what could lie ahead for the UK.
Bank of England governor signals possible interest rate cut saying "monetary policy easing will likely be required".
A look at how Mouquet Farm, north of Pozières in France, became a pivotal battleground during the Battle of the Somme.