In mobile networking, Mobile-to-Mobile communication helps in data exchange between actual and closest devices. The Mobile-to-Mobile communications are used to make short range communication. It improves the network performance and supports proximity based services. Our primary goal is to provide potential solution to mobile-to-mobile communications. In this paper we use an efficient key agreement protocol known as Diffie- Hellman key and commitment scheme. The proposed protocol has less computation and communication cost, while compared to other protocols. .