When i had my previous online Master he introduced me to clothespins. At first even on my breasts they killed but soon it was a reward to be able to place them on my nipples and around the rest of my tits. They seemed to have the perfect amount of pain sensation within them. I even enjoyed them on my pussy lips. However as for my clit, i can only take a few seconds directly on my clit but just below that i can withstand it much longer. But my actual clit seems much to sensitive to hold it long at all.