As he sucked, the small nub nestled between his lips, it began to slowly grow along with the muscles he could feel pulsing under the skin. It was becoming more akin to sucking a cock as he went, the nub growing and pushing out of the protruding skin around it. Out of the corner of his eye he could see her giant hand come to rest on her leg beside him clenching and unclenching. Her groans and moans had melded together in a low never-ending sound.