» Sun Dec 11, 2011 7:07 pm
Given that this is still the same Gamebryo that powered Oblivion, Fallout 3 and New Vegas, it's probably possible. You'd have to leave the cell and enter it again, to force a reload: the target character should then wear the armor you PLANTED on him.
Note: This process is called PLANTING items. Not pickpocketing, not reverse-pickpocketing, PLANTING items.