Out of all the NPCs on Tarkus, the one with the most potential for a quest would be, in my view, Dr. Lash. In exchange for a smuggled Uthra tree from Myrellion (possibly obtained with Azra), and a vial or two of the Treatment, he would give Steele an anti-lust accessory, drastically reducing sexiness but also giving good Lust resistance.
He would be trying to 'cure' the Treatment of New Texas.
He would be trying to 'cure' the Treatment of New Texas.