Secretly s witch who wants the perfect mate. She won't have sex with someone unless they have passed her three tests. She doesn't announce them. But if you are kissing her and try and grab a boob or vagina, she starts the test without warning.

First test she conjures a beautiful woman. You have to make her orgasm.

Second she turns you into a beautiful woman and conjures a horny man to have sex with you. To pass this one you have to give an orgasm to the guy and be submissive to him.

Final test, while still a woman. She conjures 8 men for a gangbang. You must make every single man orgasm.

Finally when done, Kathryn wants to have sex with you. She doesn't change you back to a man. Rather as you disrobe her, a huge penis comes out from between her legs(surprise reveal). She's a futinari and she fucks intensely