Prompt: 1boy,emiya shirou, (black hair), testicles, male focus, multiple boys, 2boys, penis, sex, yaoi, anal, nipples, short hair, nude, uncensored, socks, black hair, open mouth, blue eyes, navel, pectorals, blush, spread legs, bangs, solo focus, multiple penises, veins, erection, lying, veiny penis, perineum, looking at viewer, hair between eyes, intrain, train interior, completely nude,<lora:muscle_slider_v1:-2>
Negative prompt: extra fingers, fewer fingers, bad-hands-5, by bad-artist,  (bad eyes:1.2), (misfigured pupils:1.2), (bad clothing:1.3), (undetailed clothing:1.3), ng_deepnegative_v1_75t,  verybadimagenegative_v1.3, (nonsensical backrounds:1.2), (bad backrounds:1.2), (bad shadows:1.2), (bad anatomy:1.1), watermark, pussy, female, vagina