As soon as I had finished draining Sue, I felt Traci also bucking in the throes of her own orgasm. Sue wickedly kept me firmly held underwater until her sister had ceased quaking and moaning. By this time, streams of air bubbles were gushing out of me and I again urgently needed to breathe. I gagged underwater and fought not to drown! I blanketed my face with her cunt to help hold the water back. .....