I have seen a couple different porn clips where they are inserting a double dong fully in the ass, looks to be around 12"+ long or (maybe too big for me) fisted up to the elbow. I was just wondering how it is possible or if you has done this? I have tried long toys and can only get about 6"-7". After I saw this deep insertion I have been wanting to try to get deep. Any advise would be much appreciated.