This Simply adds Dongs to the Nightstrikers from the Nightstriker Mod https://www.nexusmods.com/fallout4/mods/23004 I'm a noob at this so hopefully I did it correctly, they seem to be working for me at least. This includes Borus the available companion, as well as all the wild varieties.
As mentioned I'm a noob so this is just the Vicious Dog assets (from leitos files I believe) pasted onto the Nightstriker body, so the colours dont match too well (mostly on the Albino) but I figure it better than nothing.
All the usual stuff for a working AAF install:
AAF Creature Resources for the correct morphs (i think): https://www.loverslab.com/topic/124318-aaf-creature-resources/
AAF Violate(+Optional Nightstriker patch): for the wild varieties https://www.loverslab.com/files/file/6657-aaf-violate/
AAF SEU: to initiate sex with Borus the companion: https://www.loverslab.com/topic/110417-aaf-sex-em-up/
Animation packs that have dog animations, such as Savagecabbages https://www.loverslab.com/topic/100576-my-animation-pack-updated-03092020/
I think that cover it, let me know if i missed anything.