This patch adds a magenta succubus tail to your character. It works best on elves from what I've seen. Use the spell 208065 to apply the tail to yourself. This spell can be cast on others, so target carefully.
Download here: https://drive.google.com/file/d/1oDjuD5YDa6k9OkCYbIztIWAcAOyRh5jK/view?usp=share_link
As always with my patches, feel free to make any edits you like or include it in larger patches for yourself, friends, and phases.
The tail's animation is a bit odd because of the succubus' idle animation (and my own patch-making skill limitations) so it only occasionally flicks about with motion. For the most part, the tail holds still.