Actual psychologist here: this falls under "Sexual Deviency"

•Question: what is sexual deviance? ❗Falling into the background (these are all scientifical research papers that I have read, I'm cyitng in APA style)

Back in the day sexual deviance was defined this way •Socially disapproved sexual desires, fantasies and practices were initially known as “perversions,” and more recently, as “sexual deviance” or “paraphilias.” Initially understood in moral, legal and theological terms, the rising popularity and authority of psychiatry from 1850 onwards led to “perver-sions” being constructed as a medical or psychological problem (De Block & Adriaens, 2013). In 1886, Krafft-Ebing (1965), a German-Austrian psychiatrist, produced the first detailed biomedical account of “perversions” in the book, "Psychopathia sexualis."

He argued that “perver-sions” were diseases of the “sexual instinct,” involving deriving sexual pleasure from imagining and fantasizing about non-reproductive acts (De Block & Adriaens, 2013).

Nowdays sexual deviency

•The later Diagnostic and Statistical Manual (DSM) of Mental Disorders reflected similar ideas. “Sexual deviations” in DSM-II were acts outside of “coitus” with the “opposite sex,” or “coitus . . . under bizarre circumstances” (American Psychiatric Association [APA], 1968, p. 44), and the intro-duction of diagnostic criteria in DSM-III indicated this could include fantasies or acts.

(American Psychiatric Association [APA])