User blog comment:Halomasterjk/Skyrim DLC Rumors: Dragon Riding?/@comment-5280592-20121020220432/@comment-4057437-20121021194827

A cooperative Dragon lowers his head so one can climb on, (the Dragonborn has no trouble getting on top of a Dragon during a Kill Scene).

You sit on the scales and hold on to the spikes... Amazing concept, huh?