Abstract: A method of generating media content with revealable area(s), comprising: displaying an image on a display of a sender client terminal, marking area(s) in the image by a marking user input made by a sender which uses the sender client terminal, associating unmasking term(s), generating from the media content a partly masked media content having the at least one area masked by at least one masking object, forwarding the partly masked media content and the at least one unmasking term to be presented on at least one recipient client terminal of at least one recipient, and monitoring a compliance with the at least one unmasking term. The at least one masking object is automatically removed to reveal the at least one masked area in a presentation on a display of the at least one recipient client terminal when the at least one unmasking term is complied with.