You knew there had to be a word for it …
One who finds intelligence the most sexually attractive feature.
“I want an incisive, inquisitive, insightful, irreverent mind. I want someone for whom philosophical discussion is foreplay. I want someone who sometimes makes me go ouch due to their wit and evil sense of humor. I want someone that I can reach out and touch randomly. I want someone I can cuddle with.
I decided all that means that I am sapiosexual.”
(via urban dictionary)