She's bored because she was a prostitute before she did porn and isn't used to putting on the porn act. Pornstars that know what they're doing are always putting on an act for the viewer because that's what makes good porn, whereas prostitutes just need to give good sex. Notice how skillful her blowjob was even though her acting was amateur/nonexistent. He didn't even have to get himself off at the end like most professional porn, she did all the work like a good whore.
– Very cute and hot babe.