Procedural Penis Animations/Collision [Beta]

[myhouseatl]

I love the mechanics of this mod but, since I can't seem to get any reply on the missing 3BA vaginal mesh, I'm going to have to drop this mod.  Shame, it works so well...

[asdt123123]

4 hours ago, myhouseatl said:

I love the mechanics of this mod but, since I can't seem to get any reply on the missing 3BA vaginal mesh, I'm going to have to drop this mod.  Shame, it works so well...

Mod doesn't touch meshes. If disabling HandleOpeningPhysics in the config doesn't fix your issue, I'd presume you're using a veery old skeleton and or body. 

[Juanex7211]

On 1/24/2026 at 3:50 PM, NCK30 said:

Previews with a big BBC. Anal and Vagina.

https://www.redgifs.com/watch/giftedcrushingindianpangolin

https://www.redgifs.com/watch/judiciousharmoniousicelandicsheepdog

Bro!!! ....that anal animation looks amazing, could you share to me how did you make the BBC penetrate the Anus so....organic??....what body do you use?....i use the softbody but the anal animations are not THAT realistic as the ones in your gif..wow...

 

[Juanex7211]

On 1/24/2026 at 9:09 AM, Gilmor-nk said:

Stop talking nonsense. Why doesn't the author make customizable keys? Why do I have to search somewhere for some codes to change the keys, and the author is too lazy to even post these codes in the description of his mod? Why did he have to ruin the scroll? By the way, there is no scroll in the settings. So maybe the author should stop acting like a jerk?

Dude....are you really THAT braindead?? what the hell are you doing in this site if something so SIMPLE as modifying a file its so hard for you? i would understand your bitching if the configs of this mod required actual complex programming....but its just literally open a damn archive, set your own hotkeys and save the damn thing.....like bro, go back to Nexus if this basic level of customizing mods is a little to much for ya, lmao.

Edited January 27 by Juanex7211

[asdt123123]

New snapshot WIP release for the v0.0.20 update. 

 

Changelog: 

• Changed out JSON for TOML, so I'm actually able to put detailed comments. Animation tags still use json since we need SPEED with those
• You can now edit the hole positions easier in-game through the action UI. While OUTSIDE of a scene, aim at the desired actor, and press backspace. Then select the relevant buttons. I tried to make it very self explanatory, so I wont explain it further here to test whether I did a good enough job. Just make sure you read..? 
• Tweaked the default offsets a bit for 3BA and UBE
• Changed the action menu from 0 to backspace instead. Hopefully no mods are using backspace..? 

Previous WIP Changelog:

- Penetration logic is more accurate now. Just dropped the collision cylinder logic all together since it's virtually pointless given we literally control the penis

- Fixed the vagina/anus animation not playing correctly for cowgirl (It was using the speed of the penis, not the speed of the penis relative to the vagina)

- Disabled hole collision with lesbian animations.

- Made the default configs a bit more accurate. Keep in mind, nothing will be accurate for every body/face. 90% chance you'll need to adjust this

- I forgot

 

 

Let me know if the new hole thing is easy or difficult to use. It's a bit strange since you have to modify the height while holding shift, but I figured that's the most straightforward way. Mods shouldn't trigger their own hotkeys while this is active, so it should be fine to use the arrows. 

 

 And again, just to reiterate: The old .json file format is gone. It's all toml now. So you'll need to port your old offsets over to the toml. You could probably ask ChatGPT to do it if it doesn't freak out over the goon material. 

 

Current todo list:

• Male preset (Will need 1 of the gays to do this with himbo or whatever it's called)
• NoMaleOnMalePenetration option - very simple, will prevent male on male penetration without having to enable IgnoreMaleActors which disables masturbation handjobs
• Polish this new UI a bit. Maybe add the ability to configure a few things in-game like enable/disable debug options/etc. 

 

 

 

PPA - Penetration Physics v0.0.20.zip

Edited January 27 by asdt123123

[Aeschylus]

43 minutes ago, asdt123123 said:

• Changed the action menu from 0 to backspace instead. Hopefully no mods are using backspace..? 

 

Immersive Equipment Displays uses backspace by default, I believe. You're probably going to run into a conflict with some mod no matter which key you choose, but IED is a pretty big one.

[ruggsy9]

2 hours ago, asdt123123 said:

New snapshot WIP release for the v0.0.20 update. 

 

Changelog: 

• Changed out JSON for TOML, so I'm actually able to put detailed comments. Animation tags still use json since we need SPEED with those
• You can now edit the hole positions easier in-game through the action UI. While OUTSIDE of a scene, aim at the desired actor, and press backspace. Then select the relevant buttons. I tried to make it very self explanatory, so I wont explain it further here to test whether I did a good enough job. Just make sure you read..? 
• Tweaked the default offsets a bit for 3BA and UBE
• Changed the action menu from 0 to backspace instead. Hopefully no mods are using backspace..? 

Previous WIP Changelog:

- Penetration logic is more accurate now. Just dropped the collision cylinder logic all together since it's virtually pointless given we literally control the penis

- Fixed the vagina/anus animation not playing correctly for cowgirl (It was using the speed of the penis, not the speed of the penis relative to the vagina)

- Disabled hole collision with lesbian animations.

- Made the default configs a bit more accurate. Keep in mind, nothing will be accurate for every body/face. 90% chance you'll need to adjust this

- I forgot

 

 

Let me know if the new hole thing is easy or difficult to use. It's a bit strange since you have to modify the height while holding shift, but I figured that's the most straightforward way. Mods shouldn't trigger their own hotkeys while this is active, so it should be fine to use the arrows. 

 

 And again, just to reiterate: The old .json file format is gone. It's all toml now. So you'll need to port your old offsets over to the toml. You could probably ask ChatGPT to do it if it doesn't freak out over the goon material. 

 

Current todo list:

• Male preset (Will need 1 of the gays to do this with himbo or whatever it's called)
• NoMaleOnMalePenetration option - very simple, will prevent male on male penetration without having to enable IgnoreMaleActors which disables masturbation handjobs
• Polish this new UI a bit. Maybe add the ability to configure a few things in-game like enable/disable debug options/etc. 

PPA - Penetration Physics v0.0.20.zip 750.72 kB · 1 download

been awaiting this change, the other version was interfering with the animation loader , testing now

Edited January 27 by ruggsy9

[ruggsy9]

seeing red X's during sex animations with 

3 hours ago, asdt123123 said:

New snapshot WIP release for the v0.0.20 update. 

 

Changelog: 

• Changed out JSON for TOML, so I'm actually able to put detailed comments. Animation tags still use json since we need SPEED with those
• You can now edit the hole positions easier in-game through the action UI. While OUTSIDE of a scene, aim at the desired actor, and press backspace. Then select the relevant buttons. I tried to make it very self explanatory, so I wont explain it further here to test whether I did a good enough job. Just make sure you read..? 
• Tweaked the default offsets a bit for 3BA and UBE
• Changed the action menu from 0 to backspace instead. Hopefully no mods are using backspace..? 

Previous WIP Changelog:

- Penetration logic is more accurate now. Just dropped the collision cylinder logic all together since it's virtually pointless given we literally control the penis

- Fixed the vagina/anus animation not playing correctly for cowgirl (It was using the speed of the penis, not the speed of the penis relative to the vagina)

- Disabled hole collision with lesbian animations.

- Made the default configs a bit more accurate. Keep in mind, nothing will be accurate for every body/face. 90% chance you'll need to adjust this

- I forgot

 

 

Let me know if the new hole thing is easy or difficult to use. It's a bit strange since you have to modify the height while holding shift, but I figured that's the most straightforward way. Mods shouldn't trigger their own hotkeys while this is active, so it should be fine to use the arrows. 

 

 And again, just to reiterate: The old .json file format is gone. It's all toml now. So you'll need to port your old offsets over to the toml. You could probably ask ChatGPT to do it if it doesn't freak out over the goon material. 

 

Current todo list:

• Male preset (Will need 1 of the gays to do this with himbo or whatever it's called)
• NoMaleOnMalePenetration option - very simple, will prevent male on male penetration without having to enable IgnoreMaleActors which disables masturbation handjobs
• Polish this new UI a bit. Maybe add the ability to configure a few things in-game like enable/disable debug options/etc. 

PPA - Penetration Physics v0.0.20.zip 750.72 kB · 1 download

seeing red X's with this download. 

[Imperfection]

47 minutes ago, ruggsy9 said:

seeing red X's during sex animations with 

seeing red X's with this download. 

 

Try changing this to false in Debug section in accurate-penetration.toml?

 

# Display your vagina/anus/mouth entrances and splines in-game
Bones = true

Edited January 27 by Imperfection

[pdd001]

8 hours ago, myhouseatl said:

I love the mechanics of this mod but, since I can't seem to get any reply on the missing 3BA vaginal mesh, I'm going to have to drop this mod.  Shame, it works so well...

Have you tried to uninstall body mod and reinstall again?

[pdd001]

3 hours ago, asdt123123 said:

 

• Changed the action menu from 0 to backspace instead. Hopefully no mods are using backspace..? 

 

I think you should keep the key where it is for user to change themself since people's modlist are not the same, keys might get conflicted with other mod

[ruggsy9]

1 hour ago, Imperfection said:

 

Try changing this to false in Debug section in accurate-penetration.toml?

 

# Display your vagina/anus/mouth entrances and splines in-game
Bones = true

thank you, That removed those X's

[NCK30]

15 hours ago, Juanex7211 said:

Bro!!! ....that anal animation looks amazing, could you share to me how did you make the BBC penetrate the Anus so....organic??....what body do you use?....i use the softbody but the anal animations are not THAT realistic as the ones in your gif..wow...

 

 

It is also a matter of me setting up ass collision with CBPC. I spent many hours fine tuning.

 

Still it looked much better with HDT PE on LE. 

 

But anyway the mod itself should make it look as good, as it gets.

 

 

I use BBHUNP which is a offshoot of BHUNP with many more sliders. Also adjusted both my bodies to fit my animations perfectly.

 

I adjust the size of the schlong in Racemenu. Using SOS Full with regular schlong.

 

All in all this gives the great result that You see.

[Ryo95]

18 hours ago, Aeschylus said:

Immersive Equipment Displays uses backspace by default, I believe. You're probably going to run into a conflict with some mod no matter which key you choose, but IED is a pretty big one.

Yes, I was gonna say that too. IED uses Backspace.

[Ryo95]

In the toml file you wrote :

# Controls facial expressions during oral scenes.
# This is optional since SexLab already handles mouth opening.

 

So, how do I disable mouth opening in SexLab to let PPA handle it completely ? Just uncheck "Facial expressions" in SL MCM ?

 

Edit : it seems there is something wrong with the new version, because no matter how I change the oral opening values, the mouth always opens (too much) even if I set :

[Mouth.Opening]
Enabled     = false

 

Edited January 27 by Ryo95

[asdt123123]

11 minutes ago, Ryo95 said:

In the toml file you wrote :

# Controls facial expressions during oral scenes.
# This is optional since SexLab already handles mouth opening.

 

So, how do I disable mouth opening in SexLab to let PPA handle it completely ? Just uncheck "Facial expressions" in SL MCM ?

I have no idea lol. I'm pretty sure it's hardcoded in Sexlab. 

This is what I did for mine, those phonemes are used by Sexlab so if you just set them to 0 this mod takes over (Only while the penis is physically in the mouth):

 

Spoiler

		"MouthOpening": {
			"Enabled": true,
			"SpeedFactor": 1.0,
			"Smoothing": 8.0,
			"Effects": [
				{
					"Type": "Phoneme",
					"Index": 0,
					"TargetValue": 0.0
				},
				{
					"Type": "Phoneme",
					"Index": 1,
					"TargetValue": 0.0
				},
				{
					"Type": "Phoneme",
					"Index": 5,
					"TargetValue": 0.0
				},
				{
					"Type": "Phoneme",
					"Index": 6,
					"TargetValue": 0.0
				},
				{
					"Type": "Phoneme",
					"Index": 7,
					"TargetValue": 0.0
				},
				{
					"Type": "Phoneme",
					"Index": 9,
					"TargetValue": 0.0
				},
				{
					"Type": "Expression",
					"Index": 3,
					"TargetValue": 0.0
				},
				{
					"Type": "MFEE",
					"MorphCategory": "Misc",
					"MorphName": "MoodFear",
					"MinTargetValue": 0,
					"TargetValue": 80,
					"MinPenetrationDepth": 7.0,
					"MaxPenetrationDepth": 8.0
				},
				{
					"Type": "MFEE",
					"MorphCategory": "Misc",
					"MorphName": "Ahegao",
					"MinTargetValue": 20,
					"TargetValue": 30,
					"MinPenetrationDepth": 0.0,
					"MaxPenetrationDepth": 6.0
				},
				{
					"Type": "MFEE",
					"MorphCategory": "Misc",
					"MorphName": "EXPR2_Mouth_Open_Wide",
					"MinTargetValue": 30,
					"TargetValue": 40,
					"MinPenetrationDepth": 0.0,
					"MaxPenetrationDepth": 6.0
				}
			]
		}

 

 

[HornyNerdBird]

So will this mod automatically work when installed, because I suck at messing around with files. 

[Ryo95]

I don't think it's a good idea to disable facial expressions in SL MCM because it would also disable eyes expressions, etc.

 

 it seems there is something wrong with the new version, because no matter how I change the oral opening values, the mouth always opens (too much) even if I set :

[Mouth.Opening]
Enabled     = false

[chevalierx]

21 hours ago, asdt123123 said:

Mod doesn't touch meshes. If disabling HandleOpeningPhysics in the config doesn't fix your issue, I'd presume you're using a veery old skeleton and or body. 

i need isable HandleOpeningPhysics if i use only cbpc i read hole as it disable only for smp ?

[PippinTom]

For me in v0.0.19 (@SL1.66b), no matter what kind of scene ends playing (oral or not) - mouth remains open, or more accurately - frozen on last expression, whichever that was. Setting "enabled" to false in "MouthOpening" block of INI does not help.

 

note: I'm not entirely sure PPAs new feature is culprit or just a coincidence with version update, because after a while I realized two other small changes done in my mods, so will investigate that direction next time to verify if those are not to be blamed.

[asdt123123]

8 minutes ago, PippinTom said:

For me in v0.0.19 (@SL1.66b), no matter what kind of scene ends playing (oral or not) - mouth remains open, or more accurately - frozen on last expression, whichever that was. Setting "enabled" to false in "MouthOpening" block of INI does not help.

 

note: I'm not entirely sure PPAs new feature is culprit or just a coincidence with version update, because after a while I realized two other small changes done in my mods, so will investigate that direction next time to verify if those are not to be blamed.

You might have to use Mfg Fix NG. It can also be caused by other mods breaking facial morphs randomly. YPS Fashion is one I always have trouble with. If you're using MFEE morphs, that's a mfee bug. The version I just released has a "Fix" button that'll reset the face 3D to re-load facial morphs

 

1 hour ago, Ryo95 said:

I don't think it's a good idea to disable facial expressions in SL MCM because it would also disable eyes expressions, etc.

 

 it seems there is something wrong with the new version, because no matter how I change the oral opening values, the mouth always opens (too much) even if I set :

[Mouth.Opening]
Enabled     = false

The UBE config has an override for Mouth.Opening you'll need to toggle too assume you're using UBE. I wasn't able to reproduce this on the version I just released a few minutes ago so either I accidentally fixed it, or it's just an override config you missed.

 

1 hour ago, chevalierx said:

i need isable HandleOpeningPhysics if i use only cbpc i read hole as it disable only for smp ?

If you want this mod handling the vag/anus openings then you put that true. False otherwise. 

[PippinTom]

14 minutes ago, asdt123123 said:

You might have to use Mfg Fix NG.

 

Heh, that would be it because Mfg Fix NG is one of two things that has changed at the time of updating PPA (I turned it OFF leaving just old Mfg fix active, because I don't really need fancy transitions and in general don't like DLL plugins in my LO unless they are essential).

[Jayoen]

22 hours ago, Aeschylus said:

Immersive Equipment Displays uses backspace by default, I believe. You're probably going to run into a conflict with some mod no matter which key you choose, but IED is a pretty big one.

+1 for going to say that. IED is crazy popular, that's a pretty big conflict. Hopefully I can change the hot key in the config?

[Juanex7211]

9 hours ago, NCK30 said:

 

It is also a matter of me setting up ass collision with CBPC. I spent many hours fine tuning.

 

Still it looked much better with HDT PE on LE. 

 

But anyway the mod itself should make it look as good, as it gets.

 

 

I use BBHUNP which is a offshoot of BHUNP with many more sliders. Also adjusted both my bodies to fit my animations perfectly.

 

I adjust the size of the schlong in Racemenu. Using SOS Full with regular schlong.

 

All in all this gives the great result that You see.

Damn...i ignored BHUNP in favor of CBBE for many years, but if this is the level one can reach with that body and some tweaks im seriously considering to change.

[dllxmatcher]

Even though I put my armor back on at the end of the Ostim scene, the erection still won't go away.