Prompt: male, male only, solo, anthro, android, robot boy, robot, robotic, machine,  cyborg, (((unknown_species))), rainbow, rainbow_eyes, neon, blank expression, markings, muscular, synthetic, muscular male, slim waist, holographic, humanoid_genitalia, humanoid penis, penis, (flaccid, uncut, foreskin, unretracted_foreskin, long_foreskin, thick_foreskin:1), thick penis, huge cock, balls, big balls, saggy balls, thick thighs, ((glowing, glowing genitalia)), looking at viewer
Negative prompt: boring_e621_fluffyrock_v4, hand_on_penis, holding_penis, penis_in_hand, human genitalia, signature, logo, female, boobs, boob, breast, breasts