A fetish where sex is treated either as a form of combat or a "martial arts" technique, typically involves a battle between character(s) where either sides uses sexual acts to beat the opponent into submission. The fetish is, to an extent, a combination of the mixed-sex combat and zenra fetish.
Referred to as "battle fuck" (BF for short) in Japanese.
For an actual combat between male and female, use mixed-sex combat instead.
