Facebook Messenger might allow friends to share more than just conversations. According to hacked screenshots, the extension app of Facebook might be making it easier to pay friends back through a mobile payment feature.

According to screenshots taken by a student developer from Stanford, Andrew Aude, Facebook Messenger's payment transfer option already has been developed and could be ready to launch.

Facebook CEO Mark Zuckerberg hinted that there would be "some overlap" regarding payments and the Messenger during the company's Q2 earnings call in July. "The payments piece will be a part of what will help drive the overall success and help people share with each other and interact with businesses," Zuckerberg said.

Zuckerberg said the company would take its time bringing mobile payments to the Messenger so they could "do this in the way that is going to be right over multiple years." But the new feature could be launched closer than Zuckerberg predicted.

Aude posted what he uncovered on Twitter on Saturday, suspecting the feature will be turned on in the U.S. in the next few months, even if it is just for in-house testing. He used the iOS app Cycript to turn on the feature after security researcher Jonathan Zdziarski uncovered the Facebook Messenger code a month ago.

Publishing screenshots and video, Aude found that the Messenger's payment features would allow users to send money the same way they would share a photo.