Sex, Nudity, and Romance for Animal Sims. Also includes Human x Pet Sim relationships.
To learn more about the Main features of Devious Desires take a look at DD General, for information about modules for DD, take a look at the various Module pages.
Ensure the Pet Sim has a species preference and gender preference that matches your Sim
The animations listed here are only the animations that I am aware of. There are likely to be even more available than those in this list!