I'm not sure if "interests" is a correct translation for 性癖... On the other hand, I have reservations on the literal translation "paraphilia" either.
*There are in excess of 1300 R-18 Madoka images on Pixiv. (March 2011)Over a thousand R-18 images of the five of us!?And even a small group of folders for different types of interests!!Mami, how awesome!! No, wait, can I please call you Mami-san?!Why are you making a "how about that?" face!?