Mortag,

I view a dp in the way I see a sports match. The aim is for men to cooperate with each other to achieve a goal. In the case of a dp, it's to stretch the sphincter. The men bond in the common goal, providing each other with encouragement and adrenalin rushes as they combine their sweaty manhoods for the common good. It's a very heterosexual thing.

I would go so far as to say that every man must engage in a dp in order to prove his heterosexuality. It should be a heterosexual rite of passage. If you can get through a dp without wanting to have it off with the man, then you are truly 100% straight.