I think someone made a comment about this already but, if it didn't here's the breakdown: Big Mac is a stallion, Stallions are adult male ponies. After Celestia broke the spell, Big Mac looked at smarty pants and then checked to see anyone before he grabbed her and ran off with her. Smarty Pants is a Doll, and Dolls are many what girls play with for their entertainment. To put it simple, this picture is showing an adult male loving something that is originally intended for little girls. Doesn't this remind us of anything? Hmm?