[Solved] The first part of the small intestine is the duodenum. Autoerotic Asphyxia: A form of sexual masochism linking strangulation with masturbation. Strangulation: The act of compressing the neck of a person, leading to potential unconsciousness or death due to the obstruction of blood flow and air to the brain. Masturbation: The sexual stimulation of one's own genitals, often to the point of orgasm. Sexual Sadism: A condition in which sexual pleasure is derived from causing pain, suffering, or humiliation to others.