It was so big but something was happening. It was almost like I was pulling it and grabbing from the inside as much as I was pushing from the outside. Suddenly, the pressure eased just a bit. I looked down and could see nothing but shaft, and just like with my mouth the lips couldn't find any purchase and the whole thing started sliding in. God it was so easy and I felt full in a place I'd never known was empty. I could feel something moving across surfaces that had never existed, not even to my reaching fingers.