The sacred becomes profane as the siblings, driven by carnal hunger, succumb to their taboo longings in the holiest of places. The brother, his cock throbbing with desire, pushes his sister onto the altar, lifting her skirt to reveal her wet, quivering pussy. He plunges into her, their cries of ecstasy echoing through the empty church as they fuck like animals, their bodies slick with sweat and sin. They cum together, their bodies convulsing with pleasure, their souls forever tainted by their taboo lust.