A boning marathon is an incredibly erotic time whenever a couple of has great intercourse for longer periods of time. A boning marathon usually can last for upwards of two hours. It requires indredible endurance from both man in addition to girl. A boning marathon is actually begun after a lot of drinking. Once we all understand, drunks keep going longer....if not forever. You can frequently identify the members of a boning marathon by their walk. They generally go some funny after hours and hours of hoTT intercourse.