Procedural Penis Animations/Collision [Beta]

[bopersccc]

I have a female futa pc and while fucking a female npc my pc's pussy is reacting strangely (random animations).  When being fucked sometimes pc's penis reacts (I assume this mod is disabled on a receiving futa pc).  Also when being fucked the npc's penis switches between pc's ass and pussy holes almost seems to be distance based.  creatures always use anus.  I do have "futasuseanus" as FALSE.  It's probably something on my end since nobody else has mentioned it.

Edited January 12 by bopersccc

[Cothy]

On 1/10/2026 at 2:42 PM, asdt123123 said:

OStim's VR is outdated and unsupported. If the update on their github page ever makes it to Nexus you'll be good to go but it seems abandoned 

 

 

So, Let's say Ostim VR never updates again.

Would you possibly back port to 7.3.5b after some time? Or would it be too much work?

[humblellDE]

SO im quite confused why this mod dosent seam to work at all. it dosent seam to do as intended and ive tried changing the configs but still no dice. i use 3ba and the penis is the LDD TRX racial variance. if anyone would know why its not working that would be appreciated

 

[DaMan1]

1 hour ago, humblellDE said:

SO im quite confused why this mod dosent seam to work at all. it dosent seam to do as intended and ive tried changing the configs but still no dice. i use 3ba and the penis is the LDD TRX racial variance. if anyone would know why its not working that would be appreciated

 

Holy fucking lighting, This looks like a picture from reallife, What is the ENB or... How? xd

[Wastelanddom]

Anyone have advice for config settings for the mouth? Got a character with a pretty big member and the curve down the throat that I'm seeing in some of the screens people are posting isn't happening out of the box.

 

This mod is amazing by the way, works perfectly in everything other than bj's.

 

Oh also for the doubled up sound issue in Ostim taht was mentioned earlier i think this might be the cause? https://www.nexusmods.com/skyrimspecialedition/mods/120663
I have the issue with some positions with this mod active

[asdt123123]

3 hours ago, humblellDE said:

SO im quite confused why this mod dosent seam to work at all. it dosent seam to do as intended and ive tried changing the configs but still no dice. i use 3ba and the penis is the LDD TRX racial variance. if anyone would know why its not working that would be appreciated

 

Check the logs. 99% chance it's outdated OStim

 

12 hours ago, Cothy said:

So, Let's say Ostim VR never updates again.

Would you possibly back port to 7.3.5b after some time? Or would it be too much work?

Not a lot of work, just would require me having to do some reversing rather than just using their API. Not against it, but would rather wait and see if this dude pushes the latest update. Like I said, he's already merged the update you need 2 months ago:  https://github.com/Shizof/OStimNG/commit/0c6d9b390a06ccc534b5e934c852b17669be9b98. I can maybe compile it for you people and you can test if it works if I've got time. But the fact he named it beta sounds like it may be problematic for VR. 
 

 

1 hour ago, Wastelanddom said:

Anyone have advice for config settings for the mouth? Got a character with a pretty big member and the curve down the throat that I'm seeing in some of the screens people are posting isn't happening out of the box.

 

This mod is amazing by the way, works perfectly in everything other than bj's.

 

Oh also for the doubled up sound issue in Ostim taht was mentioned earlier i think this might be the cause? https://www.nexusmods.com/skyrimspecialedition/mods/120663
I have the issue with some positions with this mod active

Show a gif. Also penises like TRX Male are inherently bad for this mod because half the schlong isn't skinned or has bones. So only around half of it can bend. All your questions can be answered in the config section in detail.

 

Doubled sound is likely because they're using simple bone distance checks. You can try hookPosition 2 in the config, and maybe change the vaginal/anal canals to better line up with the bone they're using to check. 

[Rooty Tooty]

Works great on vaginal and such, but for blowjobs its going through my characters lower jaw rather than her mouth. Would there maybe be a version that turns it off for blowjobs and the like, but keeps it on for vaginal/anal?

Edited January 12 by Rooty Tooty

[RedYosh12]

Did someone manage to make it work perfectly with UBE Penis? Most poses make the penis bend strangely, like it's aligning with the center of the penis instead of around the base/root.

[humblellDE]

3 hours ago, asdt123123 said:

Check the logs. 99% chance it's outdated OStim

 

 

my ostim is the most recent version on nexus? ill try reinsatlling but could it be anything else

 

[Jack005]

On 1/10/2026 at 1:42 PM, asdt123123 said:

OStim's VR is outdated and unsupported. If the update on their github page ever makes it to Nexus you'll be good to go but it seems abandoned 

 

This mod doesn't handle expressions. That would be your sex mod's problem. Sometimes other mods like YPS can break the facial expressions too when updating the hair. 

 

Yeah it'll be a little different for everyone. The mouth bone doesn't actually move with the mouth perfectly for whatever reason. 

yep the mod works fine but it messes with sexlab expressions somehow, the mods I have that mess with expressions are SL defeat, SL survival, Expressive Facial Animation -Female Edition and Daedra Seducer redux, mfg fix NG (if it somehow works for a fix), Also I using Sexlab v163 with SexLab Utility Plus v20240407, BHUNP body, SLSO

 

I would love to have someway to turn off the mod for BJ or facial animations, to use only vaginal and anal, if somehow is posible DM please

Edited January 13 by Jack005
forgor

[gladiador1234]

Hey, im using High poly head smp from Predator-RJ , theres a little misplace in the mouth but its almost perfect... mouth open way more before 

[Jack005]

2 minutes ago, gladiador1234 said:

Hey, im using High poly head smp from Predator-RJ , theres a little misplace in the mouth but its almost perfect... mouth open way more before 

Your expressions works fine during animation?? are you using mods for expressions during animations??

[gladiador1234]

 

15 minutes ago, Jack005 said:

Your expressions works fine during animation?? are you using mods for expressions during animations??

top lip works fine , im using expressions ,Only added this mod that modify mouth, previusly used only hdt smp head and lips open wider , but the dick didnt follow a path,

 

this is just an example, sometimes works better but lower lip clips he bottom seems to clip 

[gladiador1234]

Just now, gladiador1234 said:

 

top lip works fine , im using expressions ,Only added this mod that modify mouth, previusly used only hdt smp head and lips open wider , but the dick didnt follow a path,

 

this is just an example, sometimes works better but lower lip clips he bottom seems to clip 

[asdt123123]

50 minutes ago, Jack005 said:

yep the mod works fine but it messes with sexlab expressions somehow, the mods I have that mess with expressions are SL defeat, SL survival, Expressive Facial Animation -Female Edition and Daedra Seducer redux, mfg fix NG (if it somehow works for a fix), Also I using Sexlab v163 with SexLab Utility Plus v20240407, BHUNP body, SLSO

 

I would love to have someway to turn off the mod for BJ or facial animations, to use only vaginal and anal, if somehow is posible DM please

Mod doesn't touch facial expressions in any way. That's done through an entirely different system - facial morphs, which this mod doesn't even read. 

 

You can disable this mod for facials by just offsetting the mouth opening by like 1000. Or just toggle it with F2

 

26 minutes ago, gladiador1234 said:

Hey, im using High poly head smp from Predator-RJ , theres a little misplace in the mouth but its almost perfect... mouth open way more before 

HookPosition: 2, and you need to tweak the offset positions for the mouth slightly in the config. Just turn on bone debug and try to line it up

 

2 hours ago, RedYosh12 said:

Did someone manage to make it work perfectly with UBE Penis? Most poses make the penis bend strangely, like it's aligning with the center of the penis instead of around the base/root.

You would need to show screenshots/gif

 

4 hours ago, Rooty Tooty said:

Works great on vaginal and such, but for blowjobs its going through my characters lower jaw rather than her mouth. Would there maybe be a version that turns it off for blowjobs and the like, but keeps it on for vaginal/anal?

Change the mouth offsets in the config. 

[asdt123123]

7 minutes ago, gladiador1234 said:

Turn on BoneDebug in the config and verify there even is a path to follow. Also that penis looks to be TRX's male, which I do not recommend for this mod. Only half of that penis has bones, so only half can bend. Review this post for further context on bones:

 

[gladiador1234]

11 minutes ago, asdt123123 said:

Turn on BoneDebug in the config and verify there even is a path to follow. Also that penis looks to be TRX's male, which I do not recommend for this mod. Only half of that penis has bones, so only half can bend. Review this post for further context on bones:

 

Testing !, that was on futa, ive have to test it on a male character , ill keep you updated

[General Goods]

Ye gods, the absolute nightmare, after looking at the weights on TRX schlongs - all of the male ones(that i could find) have fucked up weight paints.

But all of the futa ones(that i could find) are fine.

WTF, brother.

[tridbee]

@asdt123123

Is it possible to implement dynamic penis bone scaling while they are inside vagina/anus/mouth? As in the bones will be scaled to the defined scale set in the JSON file when they are animated and scaled back to normal if not inside any actor?

[asdt123123]

3 hours ago, tridbee said:

@asdt123123

Is it possible to implement dynamic penis bone scaling while they are inside vagina/anus/mouth? As in the bones will be scaled to the defined scale set in the JSON file when they are animated and scaled back to normal if not inside any actor?

It's possible but why? Scale is persistent too so if some bug happens then that penis is stuck like that. 

[asdt123123]

4 hours ago, General Goods said:

Ye gods, the absolute nightmare, after looking at the weights on TRX schlongs - all of the male ones(that i could find) have fucked up weight paints.

But all of the futa ones(that i could find) are fine.

WTF, brother.

It's too large for the skeleton, so the paints will never be good. Was designed with purely the erection animation in mind, so can't be animated too well beyond that. 

 

I recommend VectorPlexus Regular

[Lenin69]

See what appeared on the nexus: https://www.nexusmods.com/skyrimspecialedition/mods/169581

[Lenin69]

43 minutes ago, Lenin69 said:

See what appeared on the nexus: https://www.nexusmods.com/skyrimspecialedition/mods/169581

Do not set this modification. Everything is very bad.

[General Goods]

2 hours ago, asdt123123 said:

It's too large for the skeleton, so the paints will never be good. Was designed with purely the erection animation in mind, so can't be animated too well beyond that. 

 

I recommend VectorPlexus Regular

If only there was a TNG port of those SOS dongers, the built-in TNG cocks are... suboptimal, looks-wise.

Edit: Fuck it, did it meself

Edited January 13 by General Goods

[tridbee]

3 hours ago, asdt123123 said:

It's possible but why? Scale is persistent too so if some bug happens then that penis is stuck like that. 

 

Because I'd like to simulate effect where large penis enters but gets incrementally smaller to fit into smaller vagina/anus. While I understand that users can adjust the vagina/anus opening size and enable PenisClipFix in the JSON, having some control over penis bone scaling would help fixing some of the more annoying clipping when playing with big penis character (10+ size SOS) and PenisClipFix can't quite do it.

Edited January 13 by tridbee