Can't get SMP vagina collisions to work with BHUNP + SoS (SOLVED)

[Serenity_XXI]

I re-installed BHUNP (v4) because I wanted to try all SMP physics (rather than having of a mix of CBPC/SMP for different body parts).

 

I have the latest version of Faster HDT-SMP (v2.5.0) installed. Running Skyrim AE 1.6.640.

 

The physics themselves work quite well, except the vagina. During sex scenes with male partners, the vagina would barely open which results in clipping and breaking immersion.

 

I tried installing Baka's SoS SMP patch, hoping it would improve things, but that resulted in vaginal physics being completely broken. No movement at all during sex scenes.

 

Did I do something wrong? I just installed, and let it overwrite everything.

 

I tried to reset SMP from FSMP MCM, but that didn't help.

 

Creature animations work fine btw. I have Baka ABC. Collisions there work as intended in SMP mode.

 

Am I missing something here? Why is this so hard? 😅

Edited August 17, 2024 by Serenity_XXI

[Serenity_XXI]

Okay, after much searching, I managed to find the solution on BHUNP's posts section on the Nexus (credit to the user lacoka13).

 

Baka's SoS SMP patch DOES work, just not with the "VectorPlexus Regular" SoS variant (which is the one I had installed).

 

For the other SoS variants (average, muscular) it works out of the box.

 

You can get the patch to work for the regular variant as well by following these instructions:

 

First install Baka's patch.

 

Then you need to edit the file malegenitals_0.nif (using NifScope) located in:

"...[Skyrim Folder]\Data\meshes\actors\character\character assets\SOS\VectorPlexus Regular"

 

Instructions for editing the file in the attached image:

 

 

(Image source: https://ibb.co/qd1g36y - credit to the user Cryptionz)

 

That pretty much solves the problem.

 

Edited August 18, 2024 by Serenity_XXI

[fuzzymambo]

You're fantastic, thx

[Splintered_Lizard]

Sorry to revive an older thread, but I'm having the same problem. Sort of. I have both TRX SOS and the VectorPlexus Muscular but the BHUNP vagina collision physics just don't work.

I've gone into the BHUNP 3BBB and enabled SMP, and told it to disable CBPC. As far as I know I have all the required mods, including:

 

- Baka SOS SMP Patch;

- SMP Collision for TRX's Male and Futanari Schlongs;

- Faster HDT-SMP;
- CBPC - Physics with Collisions for SSE and VR (just to try CBPC, but it doesn't work, either);

My female PC's physics seem to work just fine, very giggly, but nothing happens insofar as the vagina (or anus) is concerned. I just don't know what to do. I also have the SOS-SE HDT-SMP mod though oddly I don't have a source for it so I cannot remember where it's from or who made it.

Also, regarding the patch, there is another file listed on Baka's page above, "SOS_-_ERF_-_High_Poly_Addon_BHUNP" -- but what is this? What is ERF? I only need the patch and not this, right? 

Edited September 14, 2025 by Splintered_Lizard