Woman doing kegels

[BigPapaWinn]

I lost a story. Here is what I remember, a wife who was "forced" into a black only prostitution and has tattoos all over her that she very upset about...black spade, etc. After getting a clear bill of health she want to give her husband a blow job. She swallows him in one gulp, he realizes she used to gag on his cock, now it's nothing to her. He's afraid he will never be able to satisfy her because of the bbc guys. I think here Dr gets her to start doing keels.
Does anyone know this story?