Many wives get off on the idea of using hubby's semen to lubricate themselves for the larger penis to follow. There's no better lubricant and if you notice, the gentleman with the bbc slid right in to her as she's already sexed up for a long deep fuck. Hubby would be wise to leave the room at this point as his wife won't have any interest in him for quite a while. Let her enjoy the profound sexual experience that's just starting.
Hubby has a great view of his wife sucking the man's cock while he is fucking her. Then the man is allowed to penetrate her pushing hubby's sperm deep into places it has never gone! WoW!~~~Aaron