Whether by accident or by design, Medusa's teasing tongue wound up being enough to distract Konoka away from the actual penetration. By the time she recognized those ribbed edges, that cock had already gotten past the tip, and its sensations were free to send another heavy shock through Konoka's nerves.

"Yeeeek!" she cried, jolted by the pleasure. Her red, red face was not doing a good job of convincing Medusa that she was wrong about that "pervert" thing.

"Mmmmh definitely... not a pervert!" Konoka tried to insist, but a whole wave of pleasure struck her after it had gone deep enough. "Uunnnghhh~!"