This should be Pamela Belen Militello from Argentina.

When I first discovered pics of her on the web, her hair reached to her upper thighs. Patiently and methodically growing it further without ever sacrificing thickness, silkiness, shine, and full ends for length, she has made it to upper calf length by now.

With her gorgeous mane, her great body, her beautiful face, and an irresistible girl-next-door charm, she has become my favourite long-hair model.