Flood gate? No. It was like the entire dam lost structural integrity at once. Sprillia Spinnererett had a squirting O once before, when she went a week without touching herself at all, and then finally got a chance to enjoy her favorite toy in the back seat of her limousine. So, it wasn't like she did know she could do it, even if she only did so the one time, when she was really worked up after not being able to get herself off for a week solid in a stress-filled location.
That experience didn't even come close to comparing to what she was experiencing. Her legs shook hard as fluids sprayed out of her. Her mouth was open, but only a silent scream came out as she became undone. It didn't matter that she was in the position she hated the most due to it putting loads of pressure on the spot where her torso and spider-like abdomen joined. One she normally found it all but impossible to get off in regardless of what any partner she had thought.
