A method for sharing multimedia content between at least a first user and a second user using first and second telecommunications terminals, respectively, the content being associated with the second user and being stored in a database hosted by a service platform accessible via a telecommunications network. The method includes: a network-based content-sharing server validating a request to share multimedia content transmitted by the first terminal by authenticating an identifier of the second terminal, which was obtained from a response to the request received from the second terminal; in the content-sharing server, if the sharing request is validated, activating a sharing session and opening a sharing memory space for enabling the sharing of content data between the first and second terminal, and transmitting session activation information to the first terminal; and displaying, in each of the first and second terminals, a sharing window for displaying the data of the sharing space during the sharing session.