As it turned out, my little sister was wonderfully multi-orgasmic. Because I had come in my mother's mouth not long before I had stamina and was able to bring Tina to three more violent orgasms before I was ready to climax. If anything, her second cum was stronger than her first and her screams brought Juana into the room looking to make sure everything was okay. When she saw me moving atop my vocal little sister she just smiled and left the room again.
"Tina," I gasped. "I'm going to cum."
She grabbed my head and made me look at her. "Look at me Tommy," she said. "Look into my...