I think that when a white wife licks a black man's asshole, the white wife shows she is happy to be a filthy slut to make a black man happy and to please him. Naturally us white Cuckold husbands need to show our deep love for our black cock slut wives and our desire to support them in anyway they or their black fuck buddies desire.
Cuckolds like me are so lucky to be married to such a beautiful and exciting Lady that enjoys licking black men's assholes.