vBeta (SDXL) and v3.0 (SD1.5) are the latest recommended versions.
Recommended workflow (an SDXL photoreal checkpoint, e.g. virileStallion_v40Photoreal)
Base image: a full-body shot in skintight, opaque, plain-colour clothing (any photoreal source you're allowed to edit).
Whole-body clothing inpaint: crop to the whole body, but mask only the clothed areas (SAM etc.; an LLM can help you build the mask). Paste back through a soft mask so face, hands, bare skin and background stay untouched. An edge/canny ControlNet from the base helps keep the body shape. [Euler A, denoise 0.9, CFG 8]
Optional chest reroll: crop around the chest, mask only the clothed chest, add the SMU LoRA (plus whatever helps nipple detail on your model) and reroll to fix weak nipple/pec detail. [Euler A, denoise 0.15, CFG 6.5]
Optional crotch reroll: crop from the navel down to the crotch, mask only the clothed crotch area (+ navel if it's covered), add the SMU LoRA and reroll to fix weak crotch/navel detail. [Euler A, denoise 0.4, CFG 8]
Tip: each step only changes pixels inside its own mask, so you can reroll chest and crotch separately and combine the best of each.
v3.0 (sd v1.5): has 3 variants: single, triple, and half, each indicates the amount of training. See x/y plot for comparison left to right on the graph is [v3single, v3triple, v3half, v2]
vBeta (SDXL): compatible with turbo checkpoints
vAlpha (SDXL): has 2 variants [Single, Half], compatible with turbo checkpoints
Trigger words: smusmu
Less frequent triggers: sheer_male_underwear, transparent_underwear, see-through_underwear, male_bulge, bulge, erection, erection_under_clothes, male_focus, male_underwear, underwear, erotic_wear, sheer_underwear, covered_penis, penis_under_sheer_clothes, skintight
See more images at the DA gallery https://www.deviantart.com/tungalow