firmly spreads buttocks, another hand grasps his erect penis and pulls it upwards, another person firmly spreads his buttocks, revealing his anus and perineum in extreme detail, hairy anal, showcasing the texture of the skin, pubic hair, glistening, wet anus, natural skin tones, details of the fingers and nails, A close-up scene of explicit sexual activity, sharply focused on the anus and genitals,