You are all in black

A young pretty woman complains to her girlfriend:
"My husband is so unbearable! He is constantly talking about his dear mum. "My
mother doesn't to it in such a way", "If my mummy could see"; "My mum wouldn't
like it". And I'm on the final line of his priorities."
Girlfriend:
"You should attract his attention as a passionate woman. So he'll forget his
mother. When he comes back home tonight meet him in your sexual underwear."
So the husband comes back home in the evening. His wife greets him wearing a
black brassiere, black stockings, and black gloves.
Husband: "Oh, goodness! You are all in black! Anything wrong with my mum?!"