The snake starts wrapping Nicki around her body and she is suffering from the grip, the snake wraps her up to the neck.
She tries to free herself, but the snake squeezes even more, she can no longer free herself and the snake squeezes her up to the muzzle, where we can see only the eyes and half face between the coils of the snake, but while it looks like Nicki is fainting, suddenly she recovers and free herself.