🎬 BBWBOUNCE — Version 2
✨ Natural breast physics for LTX Video 2.3
BBWBOUNCE is a motion LoRA for LTX Video 2.3, designed to improve the realism of large natural breast movement in both SFW and NSFW generations.
Compared to Version 1, this release was trained on a significantly larger dataset and benefits from multi-resolution training at 512p, 768p, and 1024p, resulting in smoother, more convincing breast physics and better overall motion quality.
The LoRA is primarily intended for scenes where a plus-sized woman naturally moves or shakes her chest, producing more believable bounce, sway, inertia, and weight transfer while preserving a natural appearance.
🔖 Trigger
BBWBOUNCE
Recommended prompt descriptors:
plus sized woman
massive natural breasts
sagging breasts bounce
breast sway
pendulous breasts
⚙️ Recommended Settings
Weight:
1.0 → 1.8Designed for LTX Video 2.3
Optimized for Image-to-Video (I2V)
Text-to-Video compatibility has not been extensively tested
🚀 Highlights
✅ Larger and more diverse training dataset
✅ Multi-resolution training (512p / 768p / 1024p)
✅ Improved overall breast motion
✅ More natural bounce and sway
✅ Better inertia and weight transfer
✅ Supports both SFW and NSFW workflows
⚠️ Current Limitation
The current version may interfere with lip-sync in some workflows. If your project relies heavily on facial animation, keep this limitation in mind while testing.
📸 Share Your Results!
I'd love to see your generations. Feel free to post your videos, workflows, comparisons, and experiments in the gallery.
Your feedback will directly help improve future releases and continue refining the physics and realism of the model.
⚠️ Usage Notice
By downloading or using this LoRA, you agree that:
You are solely responsible for the content you generate with it.
The creator of this model cannot be held responsible for user-generated outputs, misuse, redistribution, or third-party usage.
Users must comply with applicable laws, platform rules, and terms of service.
Reuploads, commercial redistribution, or resale of the model files without permission are not permitted.
❤️ Thanks
Thank you to everyone who supported the first version and shared valuable feedback.
I hope BBWBOUNCE V2 becomes your go-to motion LoRA for creating realistic BBW breast physics with LTX Video 2.3. Enjoy!
Description
1st version, small dataset and first LTX lora ever ! Send me your feedbacks !
FAQ
Comments (22)
Looks cool! Downloading and following!
Hey lumpy, thanks for the follow ! Post your work, and if you see any flaws to the lora I'd be happy to hear your feedbacks ;)
Great! I hope you also gonna be able to make some twerking,ass shake lora for ltx
of course ! I don't have a lot of good medias for this dataset, so if you have some names to recommend me I take it ;)
Sending kudos - this looks like the best Lora of its kind for LTX. Keep it up
thaaanks ! If you ever try it I will be happy to hear your feedbacks since it's my first LTX lora !
@Globullux I'm new so I'm not too helpful lol but the few other busty physics I've seen on here looked underwhelming.
Cool! Finally BBW for LTX!
Yeahh native breasts physique is so bad with the base model, stay tuned for V2 it will come in the next hours ;)
@Globullux Awsome! Any new plans? Whole BBW Body? Breast expansion?
@Atvilar I made 2 BBW loras for ZIB if you want to try it out ! They work pretty well, atm I'm focusing on Img2Vid for LTX (btw the Bounce V2 didn't turned out as expected lol, wait a few days before the next version). I didn't try txt2vid on this lora, idk if it works well. I have a few ideas for the next LTX loras, I want to make paizuri lora, twerk lora, deepthroat lora... I might try the expansion one, but I have no idea how to do it lol.
@Globullux Take yourself time! Yes, I have seen your other loras and Im using them already :)
T2V is giving some strange clothing parts, for example half a bra or similar.
Its not a problem, since it was not intended for T2V
@Atvilar ahah yes I'll take time and save some money on runpod by the same way lol. Awesome if you like my other loras, post your work and don't hesitate to give me feedbacks !
Boy, you boutta get me to try LTX again XD
How well does it work with non-BBW?
hahaah I was also desperated before trying to make this lora lol, I will post an exemple of non BBW it works well !
This makes hilarious barbie doll crotches when used by itself. Not a knock on the LoRA, it does exactly what it is supposed to, I just love the plastic t2v crotches, so funny. This really excels when it has a little help from physics LoRAs and run at >30fps. Interpolation too, normally you can go without it with LTX but for chestular motion it is nice. There is nothing on the planet that is softer or jigglier than a nice big real tit. I feel truly sorry for those who have never owned or rented a pair. It is one of the few things that make what they are attached to tolerable. Thank you for spreading awareness.
Thank you so much, this is so useful. I use it at -0.5 strength because NSFW LTX models sometimes give unwanted boob bounce, this fixed it.
Does the jiggle physics just apply on the breasts only? I need the jiggle physics to also work with thighs and belly etc. just the whole body in a realistic way, at the moment I am trying to train a lora myself but it's not really working that well, are you planning to make a complete BBW lora? Or do you have any tips and tricks how to train the lora?
hey ! I thin it mainly works on breasts, but i can have some soft effects on the whole body. I plan to make a V2 of this lora, but atm I'm struggling to understand LTX loras lol, btw I followed this tutorial : https://www.youtube.com/watch?v=zXQl8hoTuuM&list=PLNCXGV4pnXnIhioRx5Q64XF5LtzR3YAnN&index=149
@Globullux thanks for the reply, I trained myself and struggled with it a little bit but I think I kind of made it work! I will publish my LORA as we speak, you can check it out if you want to!
@stablediffusion1337 of course ! tell me when it's out !
btw I will publish a new BBW lora for Z image tonight, give it a try too if you are interested ;)
@Globullux sounds good I will try it out for sure!
Details
Files
LTX2.3_BBWBOUNCE_V1_MegaMilkMotion.safetensors
Mirrors
BBW BOUNCE Mega Milk Motion - LTX2.3 - BBWBOUNCE,Curvy,massive breasts,shaking her massive breasts.safetensors
BBW BOUNCE Mega Milk Motion - LTX2.3 - BBWBOUNCE,Curvy,massive breasts,shaking her massive breasts.safetensors
LTX2.3_BBWBOUNCE_V1_MegaMilkMotion.safetensors
LTX2.3_BBWBOUNCE_V1_MegaMilkMotion.safetensors
BBW BOUNCE Mega Milk Motion - LTX2.3 - BBWBOUNCE,Curvy,massive breasts,shaking her massive breasts.safetensors
BBW BOUNCE Mega Milk Motion - LTX2.3 - BBWBOUNCE,Curvy,massive breasts,shaking her massive breasts.safetensors