Forbidden Fruit

Once a month, Lucifer steps out to keep Alphas in line in Hell. It's a year since his wife had left him, but he needs to keep his word to his daughter. Meanwhile, deep within the dead forests, secluded from the city is a simple cabin where The Radio Demon resides. His body is ruined. Injuries left from a squabble he could not avoid, but had to run from as his own body began to reject him.

His heat that he had suppressed for decades has now surfaced.

When Lucifer saves him for an enemy, and chooses to help him. Well, only one thing could come from this.