Oranges And Dentures

Louisa was a prostitute, but she didn't want her grandma to know.

One day, the police raided a whole group of prostitutes at a sex  party in a hotel, and Louisa was among them. The police took them outside and had all the prostitutes lined up along the driveway when suddenly, Louisa's grandma came around the corner.

Grandma asked, "Why are you standing in line here, dear?"  Not willing to let her grandmother know the truth, Louisa told her  grandmother that the policemen were there passing out free oranges  and she was just lining up for some.

"That's awfully nice of them. I think I'll get some for myself",  and she proceeded to the back of the line. A policeman was going  down the line asking for information from all of the prostitutes.

When he got to Grandma, he was bewildered and exclaimed, "Wow, still going at it at your age? How do you do it? "

Grandma replied, "Oh, it's easy, dear. I just take my dentures out,  rip the skin back and suck them dry."