This is definitely not what Draco had in mind, but then again, Goyle needed some instruction on proper carrying, as well. Now that he's up here, it shouldn't be too hard for him to rearrange himself into a more comfortable configuration.

"Wait," he says with a rather impressive amount of gravity, all things considered. It takes some awkward wriggling, but eventually Draco manages to get himself situated sitting astride Ecks's shoulders, his hands braced on the top of her head. "That's better. Now..." he points forward with theatrical flair, "onward!"