Is it permissible to respond to the jinn's demand to expose secrets or practice masturbation to avoid rape?

It is not permissible for a person to commit sins under the pretext of being threatened by jinn, for there is no obedience to a creature in disobedience to the Creator. Jinn cannot harm a believer if he obeys Allah, trusts in Him, and fortifies himself with the prescribed invocations, as Allah Almighty says: "Indeed, there is no authority for him over those who believe and rely upon their Lord. His authority is only over those who take him as an ally and those who associate others with Him."