CivArchive
    Underboob - v1.0
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    Premium character LoRAs

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    Underboob

    A concept LoRA for Krea 2 focused on underboob: cropped t-shirts, crop tops, bikinis and tank tops lifted or cut short to show the underside of the breasts, mirror selfies with arms raised. It gives an amateur photo look.

    Usage

    Start with the trigger word UnderboobRK, then describe the woman (skin, hair), the top (cropped t-shirt, crop top, bikini, lifted tank top) and how much of the underside of her breasts it shows, her pose and the place, and end with the light. Naming the top and the underside of the breasts brings out the effect the most.

    UnderboobRK, Photograph of a woman with <skin> and <hair> in a <color> <cropped top>, showing the underside of her breasts. She is <pose> <place>. The lighting is <light>.

    Recommended weight: 1. Made for Krea 2 Turbo (8 steps, CFG 1).

    Prompt Examples

    "UnderboobRK, Photograph of a woman with olive skin and dark brown hair in a high ponytail. She wears a tight, long-sleeve, green crop top lifted to expose her breasts, revealing underboob and the underside of her breasts."

    "UnderboobRK, Photograph of a woman with light skin and brown hair in a slightly messy style. She is wearing a light blue, ribbed, cropped t-shirt that is lifted to reveal the underside of her breasts and her midriff."

    "UnderboobRK, Photograph of a woman with light skin and long brown hair with bangs, wearing a white crop top that is lifted to expose her large, natural breasts and underboob."

    Training

    • Base model: Krea 2
    • Type: Concept LoRA
    • Steps: 4000
    • Rank: 32
    • Optimizer: adamw, constant learning rate
    • Engine: ai-toolkit

    Generation settings

    Trained on Krea 2, and works on Krea 2 Turbo for faster generation.

    • Raw: ~30 steps, guidance 3.5
    • Turbo: ~8 steps, guidance 1.0

    The gallery images were generated with krea2_turbo_mxfp8.safetensors, at 8 steps, guidance 1, LoRA weight 1.

    Description

    LORA
    Krea 2

    Details

    Downloads
    7
    Platform
    CivitAI
    Platform Status
    Available
    Created
    10/26/2026
    Updated
    11/8/2026
    Deleted
    -
    Trigger Words:
    UnderboobRK

    Files

    underboob.safetensors

    Mirrors

    CivitAI (1 mirrors)