When I introduced these girls to each other, they quickly became best friends forever! Denise and Darina like each other very much! I decided to put their new friendship to the test, with the famous nipple clamps balancing act. Their wrists tightly locked behind their backs, I clamped their nipples to an overhead frame so they would have to stand on their toes. If one would go down, she would pull hard on the other girls nipple clamps! Communication was…