I really love how this look so... real! I mean, this situation could totally happend! I TOTALY imagine Thor, finding Loki in the snow, and carrying him with a smile because he loved him, he is his little brother. Loki was probably sleeping, or at least was sick, so he an not defend Thor to carry him, and was probably, somewhere, secretly relieved to be find. Thor just came at him gently smiling and said "Let's go home". He take Loki on his shoulder, and Loki, maybe for the first time, does not defend himself. He fall asleep on the route, and Thor just smile, didn't care about the weight, just content to came home with his brother.
AND I DON'T CARE IF THEIR ARE IN LOVE OR NOT, THIS IS JUST SO FUCKING CUTE.
Oh and by the way, sorry for my terrible English, i'm french ^.^"