You know you aren't man enough to please your wife and it actually gets you off to be cuckolded and humiliated.
I'm the one who has her coming home ragged and full of cum. You've known for some time that she goes out to be with me because she needs my big cock. Now I'm tired of her coming to me. I will be coming over your house to fuck your wife in your bed. You will be there to prepare her for me, wait on us and clean her up after, but only if you're a good little cuckold.