We do something similar, but using balloons. I will fill eight to ten small balloons with hot water, then stuff them into her pussy. She says she loves the feeling of being so full. It is fun for me when i then fuck her, especially with the hot water.
This blew my mind as I had never imagined such a thing, yet watching her pack her sweet lil pussy tight with her panties, got me turned on!! Soooo kinky Hot!! Love to chat with you sometime, Princess!!