A system that includes a content distributor, a reaction content server, and a plurality of viewer computer devices. The content distributor provides original content to the viewer computer devices. The viewer computer devices present the original content to viewers and generate viewer-reaction content of the viewers during presentation of the original content. The viewer computer devices provide the viewer-reaction content to the reaction content server to provide to other viewer computer devices. The viewer computer devices also present viewer-reaction content received from the reaction content server to the viewers in synchronization with the original content, which allows the viewers to experience other viewer's reactions while experiencing the same original content.