I am a girl that loves to read about sex, write about sex and ... well.. have sex. Reading my stories will give you an impression about my special preferences. I can say from experience that piercing and shaving helps enjoying sex. My stories are a combination of imagination and experience. I dont think people should erect barriers with sex, be it incestual, gay, BDSM or any other form, as long as it is consentual. Sex is a loving thing between people, sharing intimate moments. Therefore scat or waterworks or snuff is not sex, just gross.
