Fetishist and extremist couple!
She is a perverted submissive owned by her man, body, mind and soul. She is his doll, and she lets him control her however he wants. She now has a higher purpose that gives meaning to her life...serving men and their need to cum.
He is a dominant and sadist, willing to push her submissive to an unimaginable limit. Her purpose is to use all her strength and masculinity to break her limits a little more.