1boy, young handsome vietnamese boy with bodybuilder physique, (slim:1.4), huge muscles, muscular!!!, exaggerated musculatures, exaggerated muscular physique, wide shoulders, wearing sexy white wet micro thongs, sexy, smirking, confident, mischievous, cute, short hair, puffy nipples, glistening skin, detailed hands, standing backward and relaxing, standing back, backward to viewers, showing huge male butt, round muscular ass, bubble butt, tight ass, back view, naked, you can see his beautiful big round butt, in an onsen hot spring, masterpiece, best quality, highres, absurdres, bulgeJ8, realistic

verybadimagenegative_v1.3, ng_deepnegative_v1_75t, (ugly face:0.8),cross-eyed,sketches, (worst quality:2), (low quality:2), (normal quality:2), lowres, normal quality, ((monochrome)), ((grayscale)), skin spots, acnes, skin blemishes, bad anatomy, DeepNegative, facing away, tilted head, {Multiple people}, lowres, bad anatomy, bad hands, text, error, missing fingers, extra digit, fewer digits, cropped, worstquality, low quality, normal quality, jpegartifacts, signature, watermark, username, blurry, bad feet, cropped, poorly drawn hands, poorly drawn face, mutation, deformed, worst quality, low quality, normal quality, jpeg artifacts, signature, watermark, extra fingers, fewer digits, extra limbs, extra arms,extra legs, malformed limbs, fused fingers, too many fingers, long neck, cross-eyed,mutated hands, polar lowres, bad body, bad proportions, gross proportions, text, error, missing fingers, missing arms, missing legs, extra digit, extra arms, extra leg, extra foot, ((repeating hair)), (woman, girl, female), ((beard, pubic hair))