I think people sometimes don't get the beauty of having the Sub tied up like that with hands that can move a bit and try to defend her feet from the strokes! It makes the Dom willing to punish her , her resistance mentally for her even more heavier mentally, every time she tries to avoid the stroke but she get hit and hurt anyway! Nice simple genuine video!!
Brutal hitting on the feet, then she will feel hellish pains when she walks, she will actually crawl and can't sweat on her knees when they fuck her hard!