I love hearing my wife tell the man fucking her to cum up her cunt, she does it almost every time because she loves spunk so much, and she also knows i love to fuck her creampied cunt after.
There's absolutely nothing like watching your turned on wife wanting another man to penetrate her unprotected entrance to her womb. Her body and mind are programmed to need a man's sperm. It won't be the cuck's sperm. Her bull's sperm will explore her. The cuck and wife are so turned on by the thought.