masterpiece, 3d depth, UHD 8k, best quality, maximum details, extreme realism, detailed lighting, deep focus, public sex on train, 1 white man + 1 african woman, cute 20 year old, big cock in pussy, reverse cowgirl on seat, (bouncing breasts:1.2), saggy breasts, natural pose, both subjects in sharp focus, caught mid-motion, powerful body language, long black hair flying, oiled skin, detailed facial features eyes, symmetrical face, make-up, full lips, moaning, man wears business suit, woman wears unbuttoned white blouse, ripped black pantyhose, round ass, tan lines, petite athletic body, wet skin highlights, motion blur in background, subject off-center, three-quarter view, <lora:melanin-XL:2>