When Dana was asked to participate in the making of the documentary "Black Sexual Power," she jumped at the chance. It seemed like only yesterday that she was romping through the bedrooms of every black stud she could get her hands on. Marriage changed all of that. Or so she thought. With all of those memories coursing through her mind, she couldn't help but notice how wet she was getting. This afternoon, her husband is going to pay witness to another documentary, one Dana is considering titling "Hey Sweetie, Watch While I Jam This Black Dick Up My Ass!"