Mutual bathing wasn't something Unicorns practiced; such a thing was reserved mainly for the Earth Ponies. Pegasi could get by with their somewhat dexterous wings. But once a Unicorn foal was old enough to use their magic; they were expected to act much more independently. At the moment, Rarity couldn't care less about social norms, so long as Atchmon kept rubbing her scalp in all the right places, and used his hands to trickle the steamy mineral water over her head. 