dukbee: 150617yeaaaaaaa! portal series cores!I draw first time in human version   portal1 cores 

dukbee: 150617yeaaaaaaa! portal series cores!I draw first time in human version   portal1 cores 

tags: So many OTPs, Awww,Portal,

from: https://eikuuhyo.tumblr.com/post/121758891498