Tamakeri (玉蹴り)(lit. ball kicking) is a sexual fetish an subgenre of pornography in Japan. In tamakeri pornography, a female kicks a man in the testicles. Some tamakeri fetishists report that they prefer to witness kicks that resound with a hearty slap. Pornographic tamakeri videos cater to masochistic men for whom the idea of getting their testicles kicked is sexually stimulating, at least in fantasy.