James Dean and Marlon Brando had a secret sadomasochistic relationship fueled by Brando’s ego and insatiable desire for control, a new book claims.

In James Dean: Tomorrow Never Comes, the authors Darwin Porter and Danforth Prince reveal that their relationship was far more complex than had been thought.

The two men used to meet up for master and servant style sex sessions and Dean asked to be burned with cigarettes, the book claims, as Daily Mail reports.

The book is based on conversations with sources and veteran gossip journalists who had known Dean.

As the book claims, Brando was so in charge that he made Dean watch him have sex with strangers who he had just met as part of a twisted mind game.

Moreover, friends said that Dean was like a ‘puppy dog’ who would hang around Brando’s apartment in the cold hoping he would invite him in for sex.