When using any of the technologies described up until now, the mobile users receive a live video streaming but do not broadcast anything. In this paper, we propose a new method with which mobile user is both capable of sending and receiving social video. It is called MobileCast. MobileCast allows users to broadcast their own video in real-time, seeing live video and broadcast this video for other mobiles at the same time based on peer-to-peer network. With MobileCast, the idea is to use some of the idle sending capacity at the end mobile users. When mobile user captures and sends video in real-time, the device becomes a broadcaster then it can send this video for other mobile devices which again would forward the stream to other mobiles, and so on.