BBUC - Big Breasts Under Clothing

SDXL often struggles with larger breast sizes. When you include terms describing a large bust in your prompt, the model frequently generates nudity instead of keeping the character properly dressed.

BBUC (Big Breasts Under Clothing) was trained specifically to address this issue.

This LoRA was trained on a dataset of 1,000 images of adult women with larger bust sizes wearing clothing. The goal is to generate realistic, fuller bust proportions while keeping clothing intact, whether your character is wearing a dress, sweater, fitted top, casual outfit, or other everyday clothing. BBUC is designed for realistic fashion photography, lifestyle images, portraits, and character generations in SDXL.

How to use

Add the following to your prompt:

bbuc, large tits <lora:bbuc:1>

Recommended LoRA strength: 0.6 to 1.0

Experiment with the weight depending on your checkpoint, character LoRA, outfit, and desired result.

For example:

bbuc, large tits, beautiful 24-year-old woman, blue eyes, wearing an elegant fitted dress, soft smile, realistic skin texture, outdoor fashion photography <lora:bbuc:0.8>

More LoRAs, Workflows & Tutorials

Want to learn how I create consistent photorealistic AI characters and train my own LoRAs?

On my Fanvue, I share exclusive resources covering SDXL, ComfyUI, Z-Image, character consistency, LoRA training, dataset preparation, and AI image generation.

Members also get access to my private Discord, behind-the-scenes insights, practical workflows, and discounted rates for personal 1-on-1 coaching.

Explore everything included: https://huslyo123.carrd.co/

Join my Fanvue: https://www.fanvue.com/huslyo123/fv-3

Tips & Notes

• Works with SDXL-based checkpoints.

• Use a weight between 0.6 and 1.0 as a starting point.

• Combine it with your existing character LoRAs.

• Describe the clothing clearly for better outfit consistency.

• Try different clothing styles, including dresses, sweaters, blouses, and fitted tops.

• Results may vary depending on the checkpoint, prompt, and other LoRAs used.

BBUC focuses on one specific thing: larger bust proportions under clothing, without requiring nude generations.