- Welcome to Relative Evil, domain of Mistresses Catherine and Heather Morgan. Disclaimer: This site contains material of an adult nature, including strong BDSM and nudity. It is intended for mature audiences. If you are under-age where you live, if the information contained in this site is illegal where you live, if you are offended by BDSM-related content, and especially IF YOU ARE LOOKING FOR A ...www.relativeevil.com