If you know of related mods that aren't posted here, please let me know. We're always looking for good modular armor. Futa outfits are in the 2nd post! (11/3/16 Update)
Futa News - What's Coming Soon [6-18-16]
Mods
Schlongs and Horsecocks - Updated 8-3-16
Special Features and Accessories - Updated 1-26-17
Creatures and Beasts - Beast races moved here
Gender/Compatibility/Misc - Updated 5-4-16
Featured Futa will be postponed til late
Anyone looking for any other schlong add-ons with futa support can add B3lisio's Horsecock add-on and Carloss32's Canine add-on (the conversion is far from perfect but it is a start.) to their lists.
SOS-Carloss32 Canine Schlong Add-On.rar
The Raging Horse is an equipable horse weiner that is completely independent of Schlongs of Skyrim and thus doesn't need it to function.
http://www.loverslab.com/topic/12734-horse-futa-equipable-cock-142013-completely-fixed/page-3