Some time ago someone asked me for a tutorial on how to do a "CumShoot" (ejaculation scene), in the MMD, which I had done before.
but a moment of madness I deleted it (it wasn't very good anyway)
so I set out to make another tutorial, this time more complete (according to me).
and I did the tutorial from...
0:22 -> the modeling of the semen model.
6:01 -> add the bones.
8:30 -> Rigging Bones (the weights of the bones).
11:30 -> add the physics.
and...
21:40 -> make the motion in the MMD.

You can download the material for the RayCast of the semen model here...
https://www.mediafire.com/file/p8x2g5xfizz1crb/smenMaterial.zip/file

This tutorial is made with the intention of using 3d models of semen instead of using particle systems.

In most of my videos you can see how I use this method to make the scenes of "cumShoot" (ejaculate) and several scenes of creamPie (those of expelling semen from the holes).
https://ecchi.iwara.tv/users/hoay

In this video you can see the method in action in a "cum shoot in face" scene...
https://ecchi.iwara.tv/videos/yxr41ckqd3uobylm3

If you want to support me a little you can download the semen model that I made in the tutorial here...
https://hoay.booth.pm/items/3996449

You can also support me a little here...
https://www.patreon.com/HoAy
https://hoay.fanbox.cc/
and download how it rewards my videos in FHD in multiple versions (here is not the semen model)
.