CAUTION: MAY BE OFFENSIVE 

thoughts:
no 

ok, first of all, ignoring the obvious for a moment 

just why?

i know i say this almost every time but why ? why do you feel the need to ship a man and his Godson?

age-difference 

worried for you if you ship it 

maybe you should be on some sort of list or something 

score out of ten: 
0/10

probability:
0/10 unless Sirus was in love with James when he was younger, became mentally ill and mistook Harry for James and it was this whole big thing but no 

alright, no

but of course, obviously, ship what you want 

none of my business