Character: scp-166
http://www.scpwiki.com/scp-166
"SCP-166", a.k.a., "Just a Teenage Gaea" is a European female human in its late teens with ungulate features; possessing antlers, hooved feet, and a short tail reminiscent of Rangifer tarandus (Common reindeer). Despite these obvious abnormalities, DNA analysis reveals no abnormal genetic traits."
"Within a fifteen-meter radius of SCP-166, artificial objects gradually return to an unworked state. Higher complexity objects like electronics or vehicles are affected quicker, with degradation of their metallic components causing catastrophic structural failure in a matter of hours. Rudimentary materials, such as stone buildings or products made of organic materials, decay at a virtually imperceptible rate. Within the same radius plant life will begin to sprout, often growing in improbable places such as out of security cameras or ID scanners."
This SCP was Ret-Conned multiple times. It was originally a keter-class succubus that had the ability to control men that made eye contact with her and force them to do her bidding in the name of love for her, barring self harm. It was rewritten and named as "The Teenage Succubus", a Teenage Girl who wanted to be a nun, but needed to subsisted off of human male semen. Any male that came near her in a 15 meter radius and did not suffer from any damages to their primary sexual characteristics, such as erectile dysfunction would become consumed with the overwhelming desire to engage in sexual intercourse with the girl and would attempt to do so unless restrained, regardless of prior sexuality. In 70% of the cases, subjects would return to normal after a few hours, but in the other 30%, the subject's attraction would become a maniacal obsession.