there are plenty of bottomless holes these days (thankfully!!!)...who spend incredible amounts of time taking loads...and fisting bottoms, especially the ones who take it really deep have been at it for years, years, and years....so it is proven that getting fucked for 10 hours is possible without any unwanted disruptions...my experience has been it takes time and dedication, an awareness of fiber in your body everyday, an awareness of your body's rhythm, and when planning for a long session a willingness to go the extra mile starting a few days in advance, immodium of course helps but shouldn't be relied upon, only as extra layer....really simple if you want to go that route...happy marathon bottoming!