Holy shit! I have never seen nipples get like that. They are so full and sharp. When she gets the plate put in front at the end, you can kinda see them pumping. Look closely, around @4:40. You'll see her nipples throbbing out milk. She really gets drained super hard. If she saved up her milk for this, it must of been so painful yet relieving. All her valves got forced into the tips and her nipples almost burst. She had so much pressure on her nips but she doesn't have wide udders. Her milk was turning her nipples /arreolas into armor. Moral of my post: female anatomy is built much tougher than a male