The Cuck (Deity)

Overview
The Cuck is one of the three major deities in the art of Cuckoldry. Alongside The Cuckquean and The Cuckoldress, The Cuck has a primary role in the creation myth of The Great Cuckening. In the legend, he comes home one day to find himself being cucked by The Cuckquean, and then goes on to continue cucking and being cucked with both until the Great Cuckening occurs and creates Mangostis, his son.

The Cuck is worshipped by The Cucks, who seek to do his bidding, and he himself is a member of the Council of Gods. His true goals are unknown.

Abilities and Powers
The Cuck, along with the Cuckquean and the Cuckoldress, was believed to have attained Perpetual Cuck Feedback Synthesis which resulted in The Great Cuckening. As the original and ultimate Cuck, his energy was siphoned through Cuckoldry at an unparalleled rate, and he produced seemingly limitless energy from being cucked by The Cuckoldress. When he began to cuck the Cuckoldress back, the energy feedback loop unleashed god-like energy. It is believed that The Cuck himself did not possess immense power, and his incredible power was that he produced so much energy from being owned that he was essentially a limitless battery. Scholars have explained the Great Cuckening as "plugging a battery into itself to get infinite energy".

The Cuck was known to be in a relationship of some sort with The Cuckquean, and is known to be sexually or romantically attracted to at least women.

Mangostis
Mangostis is the most notable descendant of The Cuck, created from the Great Cuckening. It's unknown how strongly Mangostis's genetics/biology is connected to The Cuck. Mangostis has indicated in a few interviews that he is aware of his parantage, and that he has a strong connection to The Cuck.

"there is no god, but my father is real" -- Mangostis, 2018

Paul Bart
The "son" of Mangostis created by Liquid Blart, thus the "grandson" of The Cuck. Paul Bart was bred to be immune to Cuckoldry, and as such, many believe that Bart is the long-fabled "Anti-Cuck", who will bring about The Cuck's end.