Now Playing: Porn Star Student Returns to Campus

Now Playing: Bill Clinton and the Porn Stars

Now Playing: Porn Makes Men Happier

Now Playing: Could Internet Piracy Kill Porn For Good?

Now Playing: 'Mad Men' Cast on Final Season: 'The Beginning of the End'

Now Playing: Waitresses on sexual harassment they say they face at work from customers, managers

Now Playing: A look at what Meghan Markle's life was like before meeting Prince Harry

Now Playing: What two men say happened when they were arrested at Philadelphia Starbucks

Now Playing: The search for answers after Southwest plane's emergency landing

Now Playing: Kerry Washington on the 'Scandal' series finale and the show's legacy

Now Playing: What's one word you would use to describe James Comey?

Now Playing: What to know about 'hero pilot' who safely landed Southwest flight

Now Playing: Stormy Daniels speaks out on Trump, shows sketch of man she says threatened her

Now Playing: What happened when Southwest engine failed midair, forcing emergency landing

Now Playing: Remembering former first lady Barbara Bush

Now Playing: Kerry Washington on how Tony Goldwyn supported her leading 'Scandal'

Now Playing: Comey: John Kelly offered to resign after my firing: Part 2

Now Playing: Why James Comey likens Trump to a 'forest fire': Part 1

Now Playing: Kendrick Lamar wins a Pulitzer Prize

Now Playing: YouTube shooting: What happened before female suspect carried out her attack