I don't frequent much shipping, but it can be done right. This reminds me of a few fics that did in regards to these two. Also, the animation is quite nice; it's very smooth for each frame being redrawn and, of course, it's kind of adorable.
Very nice work, good use of their faces to express the moment. I think that the front legs are done very well for animation, clean it up just a little more and it'll look just like the show. The only thing I'm not completely blown away by is the lower legs. They look awkward and mis-angled. A little work with the flow of the hips and you're good to go. I would suggest looking at shots from the show and studying the hip connections. All in all, Exceedingly impressed!