It comes as no surprise that a fetish as common at foot fetishism makes an appearance in erotic media (porn, erotica, cam girls, etc. Plenty of other fetishes make it into porn, too. Cam girls will pose for viewers with their feet in the center of the camera. Models will sell photos of their polished and naked feet in plain view.
Acts of foot fetishism like those listed in this post are not an uncommon theme in written erotica, either. There are those people who have a foot fetish who experiment with their fetish by masturbating with footwear. They may rub against a shoe or rub a shoe against them or simply watch it while they pleasure themselves.