Kanokon, story of a freshman kid in highschool who is the main target of a 400-year-old fox/wolf goddess (pretty sure it's fox this time). She wants to fuck his brains out, or somesuch. She's a Junior or Senior. She has two modes: regular black-haired girl and blond-haired eared tailed goddess mode.
Shittons of fanservice, boobs, panties, etc.. It's got nothing on WaS storyline-wise, really, but I'm going to give it a chance.