Concupiscence is an ardent longing, typically one that is sensual. In Christianity, particularly in Catholic and Lutheran theology, concupiscence is the tendency of humans to sin.
St. Augustine explored and used the term "concupiscence" to refer to sinful lust.
Verheerlijking van de Heilige Thomas van Aquino, RP P 1908 2123
Lust is an intense desire for something. Lust can take any form such as the lust for sexual activity, money, or power; but it can also take such mundane forms as the lust for food or the lust for redo
Concupiscence
…the New Testament. Involuntary sexual arousal is explored in the Confessions of Augustine, wherein he used the term "concupiscence" to refer to sinful lust. In Judaism, there is an early concept of yetzer hara (Hebrew: יצר הרע for "evil inclination"). This concept is the inclination of humanity at creation…
Detail: Luxuria (Lust), in The Seven Deadly Sins and the Four Last Things, by Hieronymus Bosch
A demon satiating his lust in a 13th-century manuscript
Detail of Lust at the Sankt Bartholomäus church (Reichenthal), Pulpit (1894)
Goya's Man Mocked by Two Women (Dos Mujeres y un hombre), c. 1820