There is very little futa porn about Kizuna Ai but heres a couple posts, also theres some normie animation and gifs in the first two posts in the Kizuna Ai tag.
Futanari porn with the youtuber Kizuna Ai
Kizuna Ai is a 3d virtual youtuber and these are porn gifs. Ive only found one futa gif, this one:
3d porn animation with the youtuber character Kizuna Ai.