"Lean down, like this," Skellig shifts his position slightly so that he is more 'straddled' over Kreyu's feathers, lowering his center of gravity and allowing his body to vaguely 'melt' into Kreyu's form, move as she moves.

And in doing so he has moved his body closer to Xenophon, to place a reassuring (not much good it will do now in this exact moment) hand upon his shoulder. Nobody will be falling off the dragon today!