It is the men themselves who feel the need to write; "I am straight but I want to try sucking a cock" The pigeonholeing is something they have chosen for themselves. The ideal world without rigid walls separating economic, racial, religious or sexual classes is not here yet, exploiting difference is too politicaly profitable a habit to give up.
What interests me here is the concept of cock sucking as divorced from sexual attraction, the organ as a lump of meat with the owner irrelavent.
I have never been able to feel that, I want complete men not sets of components. Reading about it from the so called straight point of view is giving me something new to think about.