Be sure to visit my Iwara H page to see more Miku H videos, and also on my patreon and fanbox to see alternate versions of my Miku H videos with the other Vocaloid characters (Luka, Rin, Meiko, Haku, Teto, Neru and Gumi) and some more characters.
https://ecchi.iwara.tv/users/hoay

After watching the video carefully many times, it shows that the girls who made the motion capture had a lot of fun doing this motion capture