The Cum-Beast is an interesting beast in both design and purpose, evolved specifically to mate, it will attempt to breed with any creature it sees. This can include other Cum-Beasts, insects, and most disturbingly, humans. Although designed to breed, the Cum-Beast does not seem to have a gender, possessing both male and female genitalia, this poses the theory that Cum-Beasts often fight in order to earn the right of passing their genetic lineage to the loser. This theory is proven most by the penis of the Cum-Beasts, which is long, flexible, and prehensile when erect, as if it were a 5th limb for the beast. The Cum-Beast often breed quickly, but often breed multiple times over the course of days with creatures it has subdued, filling them with their semen, hence the name.