(1 woman, 1 male), (very fast-and-rough doggystyle-anal-sex:1.2) BREAK (man must powerfully slam his penis in and out of woman’s anus at a brutal pace, thrusting roughly every 0.2 seconds:1.4), (woman’s buttocks must bounce violently after each thrust, with each thrust cum squirts out of her anus, undulating recoil, natural buttocks physics:1.4), (woman must be forcefully impacted by each thrust), BREAK (video starts already in motion), (immediate action:1.3)