Piggyback

I don't think Chris would be willing to ever do this without Nina having begged or something XD; So his expression fits well

Chris: "Okay, okay fine. I'll do it. Just promise me you'll shut up when I'm done" -Picks her up-
Nina: "Yay!"

Nina had long hair as a kid but when she grew older Chris pulled a prank on her and cut it all off one night
But to his surprise she liked what he did and decided to keep it. Even thanking him for doing it.

Nina© Twiinyan | Chris© iPandacakes
Dolling by Twiinyan 2015 | Base by MoshiPixels 
Dolled with Paint Tool SAI with a Wacom tablet