When one dick is not enough in an ass, you send out an emergency signal to get another one. If DP is not your thing then try double anal. I mean I am talking about girls now, if one dick is not enough in your ass then you may as well try to get to shove two inside. It is a bit awkward and probably you will not be able to shit properly for a couple of days but hey, that is not a problem at all, as it's gonna be magnificent and you wanna keep coming back for more.