How do you fix a slightly twisted penis head and shaft?
Generally there isn’t anything to fix. Most of penises have a twist at some degree, generally to the left; that is due to the fact that ligaments attach furter to one side. The penis is also asymmetric, which can add to the twist. Do you have issue when having intercourses?
Like Marinera said, nothing to fix unless it’s either painful during intercourse or causing you problems in some other way.