He pushed my legs apart giving him full access to my pussy. I gasped as I felt him push something cold and round into me. What are you doing? I asked breathlessly. They're called Ben-Wa balls he said sliding another ball into me. He helped me to my feet and I gasped again as I felt the balls move and bump against each other inside me. By the time I was standing up my breath was coming in quiet gasps and my nipples were hard as pebbles beneath my dress.
Diameter per ball: 0.75" (19 mm)