Pervtude 

The perverse kind of etude! Now on sale for 2.99$

Don't do her like pervtude did

Pervtude by snike December 23, 2017

Pervitude 

The aptitude an individual has for performing or acting upon perverted deeds.

The cat girl I was chatting with told me about her fetishes, she had an uncanny pervitude.

Pervitude by Giermo July 4, 2011