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    Breasts Nipples - klein‑4B - v1.1
    NSFW
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    v1.3 - this is not upgrade, it is bigger and weaker, but maybe works better with other LoRA, if you want stronger better to use older versions.

    🚀 V1.2 - Release Notes

    This version took a bit longer, but it's worth the wait! I used a new experimental workflow to get the best out of my previous versions.

    The Recipe:

    • Step 1: Used shootthesound/comfyUI-Realtime-Lora to selectively trim and analyze blocks from v1.0, v1.1, and a bit of v1.15. Highly recommend trying this amazing tool for cleaning up your LoRAs!

    • Step 2: Merged those trimmed results using my new Easy LoRA Merger tool. It helped me mix the styles without the "burnt" look you sometimes get with standard mergers.

    Want to try the merger yourself? It’s currently in the queue for the ComfyUI Manager, but you can grab it here early: 👉 https://github.com/Terpentinas/EasyLoRAMerger

    v1.1 - slight improvement - still not there.

    v1.0 - My First LoRA for klein‑4B, still in testing phase – feel free to test and give feedback
    it focused on breasts, nipple, areola.

    Good - works with other Lora tested.
    Bad - clothing interaction.

    Description

    slight improvement - still not there.

    FAQ

    Comments (3)

    MilitAIJan 25, 2026· 2 reactions
    CivitAI

    cute boobs, funny how it also sorts of enables more nudity, but barbie or just weird holes like it were an untrained SDXL
    i hope some better nsfw loras or models get released, i'm surprised how klein 4b works with my 3070
    edit: just tested and sort of works on image edit with anime lol

    SomeUser91824Mar 6, 2026

    I currently use this loRA and "basic-nude-klein-4b-v02". Works perfectly together. With "ExcellentFullNude_F2K4B_1" it seems to stronger adhear to breast sizes, but that loRA just loves pubic hair.

    I am running a 4080 Super, it would interesst me to know how fast your generations are. Currently I manage 4 Steps in 4 secs.

    SomeUser91824Jan 30, 2026· 4 reactions
    CivitAI

    Solid Lora so far.

    edit for 1.3:
    "Problems" with giant nipples are gone, still it is very hard to get it to your desired breast size.

    But there are some problems with your training data:
    - Skin has a tendency for moles and freckles
    - Nipples are huge, very hard to unprompt for that
    - Breasts tend to more often than not be huge and/or saggy

    Maybe add more variation in

    LORA
    Flux.2 Klein 4B-base

    Details

    Downloads
    464
    Platform
    CivitAI
    Platform Status
    Available
    Created
    1/24/2026
    Updated
    5/15/2026
    Deleted
    -
    Trigger Words:
    breasts
    nipples

    Files

    breasts-01-23-1_000020000.safetensors