Women are strong.
They have known pain & suffering for the Dark Age because they are under an ordeal : their commitment to childbirth.
The child delivery is nothing else than a temporary torture : their viscera torn by the passage of the child through the cervix and their poor distended vagina.
Like a two-faced "Janus" women genitals can provide both orgasm & extreme pain later.
Therefore, she will be able to bear this harsh whipping, she cries but she's able to bear and continue.
And this woman whipped and suffering on these pics keeps on bearing pain to earn money and maybe feed her children.
Watch her breast and bloody titties, painful breast maybe during some days after the session. And here too, women know pain because when they do breastfeeding, it's often painful....
Women in general, this woman especially, are strong. These pictures are magnificent.