Also known as: 暴力的なセックス, 首絞めックス
Sexual activity which is visibly very intense and energetic, and in which one or more of the participants may even appear to be in distress (though this does not necessarily mean that Rape is occurring). May include elements such as Bondage or Tears, and more violent actions such as Asphyxiation or Grabbing Another'S Hair. Often will include Spanking or have an Ass that has been Spanked.
Contrast with Happy Sex.