I realy Never tought of that ofc they have a penis they can remove the armor can they not? and since they were changed to be Huge motherfuckers they should have leaviathan sized dicks, why are we talking about space marine dicks?
Nah... It was removed during the implants of standard Astartes (not sure about GK or Custodes), as well as have our sex drives removed.
I have never heart of the dick being removed. But in fulgrim they mention that the spacemarines reacht to the euphoria the only way they now how to, by start bashing heads in
Chem-gelded is just a trend Chaos introduced, one day it'll fade and we'll fill the Galaxy with Astartes