Fire of Lust(Zewes)

Fire of Lust

Demonic Toxin

A toxin found in any bodily fluid of a sex demon, such as their sweat, saliva, or sexual fluids, in that order of toxicity.

The more you are exposed to the toxic, the more you horny you become until you are nothing more than a sex-addled fuck toy for the demon.

Reference
Acquired in Chapter 80 "Sexual Healing"