Ha ha - good example, Loridan. Once in a while I can pull off a "stealth cum" but my generally knows when I'm ready and will take steps to make it better for me. She says it's easy for a woman to tell when a guy is about to cum and she can tell when any guy is going to cum in her. I asked her what the tipoff was and she said 3 things: his thrusting changes, his facial expression begins to change and his breathing changes. Over the years, I've been able to pull of a few "stealth cums" in her, but even then she senses the change in sound and friction/wetness.