São Paulo's blocos transform the city into a heaving, undulating mass of desire. Bare skin glistens under neon lights as bodies writhe to the throbbing bass. Hands grope and squeeze, mouths suck and bite, in a feverish dance of anonymity and abandon. The scent of sex and alcohol permeates the air as revellers seek release in the chaos. A woman straddles a stranger, riding him hard against a wall, while nearby, a man bends another over, pounding into her from behind, indifferent to the crowd around them. The night is a whirlwind of carnal indulgence, a wild, primal celebration of life and lust.