A user on Extratorrent has posted a collection of Motel Mary (or Mary the Blonde) videos. Many of these are with older fat black men, many with huge dicks. You probably have some of these, but check it out just in case.
How I wish some bbc like this man would put such a smile on my wifes face. And hopefully leave something for me to clean up too. (alas, wife won't do it)