Stelologist 

A specialist who primarily studies stelology; a person who was a degree in stelology.

I want to be a stelologist when I grow up.

Stelologist by Elithesigma January 28, 2024

sexologist

One with vast knowledge on all aspects as sex.

He must be some kind of sexologist.

sexologist by Buggieone July 13, 2009

sexologist

one who studies sex, i.e. a slut

Beena is such a sweet girl. You'd never think she's a passionate sexologist.

sexologist by Jess06 February 27, 2004