Even Hustler needs a style guide:
[Copy editor Eric Althoff] said that the magazine prefers “come” as a verb and “cum” as a noun in references to ejaculation. But on the magazine’s cover, it would allow “cum” in either situation to get the attention of potential buyers. “‘Cum’ is going to jump out at consumers,” he said.
H/t tip to Nick Baumann via The Daily Dish.