Butt Crack / Butt Cleavage (Krea 2)

A concept LoRA for Krea 2 that teaches clothing riding low, so the lower back, back dimples, buttcrack and buttocks show in varying amounts. It covers jeans, shorts, leggings, pajama pants, bikini bottoms and shirts riding up, in sitting, squatting, kneeling, standing and bent-over poses. It's trained on realistic styles.

Trigger word: buttcrackgal. It's optional. A well-written prompt that describes the clothing, pose and exposure will often work without it. Adding it at the start of the prompt shifts the output somewhat (on a fixed seed the image changes), so try both and keep whichever you prefer.

Recommended weight: 0.5 to 1.3

Controlling the effect. The LoRA weight is the main control. Lower values (0.5 to 0.8) give a subtler look, and higher values (1.0 to 1.3) push the exposure further. Prompt wording has a mild effect. These phrases were used in the training captions and can nudge the result:

• slightly exposing her buttcrack

• partially exposing her buttcrack and buttocks

• mostly exposing her buttcrack and buttocks

• exposing her lower back and back dimples

Tips

• Describe the person, pose and setting in plain language, like a photo caption.

• If the effect is weak without the trigger word, raise the weight or add the trigger.

• It's designed to stack with character LoRAs. Weight the character LoRA higher for the face and identity, and start this one around [0.6 to 0.8].

• Trained on Krea 2 RAW and run on Krea 2 Turbo.

• Also describe the clothing, like "low rise jeans and a white belt ride low" or "bikini bottom rides low." Describing the pose and setting helps too.

• Known issue: ears. At higher weights (about 1.0 and up), ears can come out deformed, spiral-shaped or missing. Many of the training photos are rear views, over-the-shoulder shots and side views where hair covers the ears or the head is small in the frame, so the LoRA saw few clear ears. To avoid it:

  • Keep the weight around 0.5 to 0.7.

  • Describe hair by color and length only (for example "long brown hair"), and the LoRA will tend to cover the ears.

  • Avoid hairstyles that expose the ears, like ponytails, buns and braids.

  • A v2 with better ear detail is planned.

Example prompt:
Short:
buttcrackgal, photograph of a woman with long brown hair, squatting on a sidewalk in side view, her low rise jeans and belt ride low, exposing her lower back and buttcrack, natural daylight

Detailed (this style gives the most control):
buttcrackgal, photograph of a young woman with pale skin and black hair, dark eye makeup, a white bandana in her hair, wearing a black sleeveless top and blue jeans. Her jeans, belt, and waistband are pulled down, mostly exposing her tattooed, bare buttocks. She sits on a purple motorcycle with flame decals, looking over her shoulder with a smile. Setting: a black wire basket with yellow and green motorcycle vests, a white scooter, outdoors with grass, a partially visible crowd, bright natural sunlight.