Terence Charles Wakelin, writer of titles like Love Slave, was discovered dead by a friend, surrounded with an assortment of “accoutrements” including electric nipple clamps.

An inquest heard the adult fiction author had pushed his heart too far while indulging in the kind of act better kept in his books.

The court ruled that it was death by misadventure.

Isle of Wight Coroner Caroline Sumeray said: “His death arose from a deliberate act which went wrong.

“He stimulated himself with an electrical device which, with the poorly state of his heart, probably killed him.”