OMG I loved this reaction, I yelled at my sister when we watched this cause I MAKE THE SAME FACE!!!!!!!!!
THE ACCURACY OF THAT (and I am secretly laughing hysterically at their facial expressions in the last two pictures... what are you doing? Arthur looks like he is asleep and Merlin looks like he is trying to seduce him!)
script of merlin replace idiot with pansy/girl/ other insult arthur might say etc.