Here's something you may not have known.
1. Enter the search screen.
2. Click "Images" then click on the drop down menu under "Category".
3. Select "Erotica".
Now in the search field enter the person you wish to see naked pics of e.g. "Britney Spears".
Now you no longer need to enter "nude" or "naked" or anything like that; just the celeb's name!
Don't forget, for best results select the check box "AutoSearchMore"!