Porn Featured on Twitter's New Video App

Asked to clean it up

Twitter is under pressure to clean up its new six-second video app, Vine, after hardcore pornography was listed prominently on its homepage on Monday.

The app for Apple iPhones was launched last week as a way for users to share short, looping videos with their friends.

But it has quickly become a new home for explicit material, with one hardcore video ranking as the top "editor's pick" on Monday – meaning users could find the x-rated clip without leaving the homepage.