Stretching Question

Hey guys I have been doing PE for about 2 months now, but I am new to the whole forum thing so I am learning some new stuff here.

Anyways I am pretty happy with where my length is and I am mainly doing this to increase my girth and EQ. So I am wondering is it
Necessary that I do stretches? From what I can tell it seems only important for increasing length. I tried searching for an answer but
I couldn’t find one

Thanks for the help guys.