Braced as he might have been he can't very well hold up against the sudden slump of Alistair's weight without warning. Down they go and he is just able to catch himself with some manner of grace rather than tumbling down upon him entirely. THere is the expected spatter of laughter but Zevran, breathless and crackling with laughter, leans up to peer into Alistair's eyes as though they are the only ones in the room.

For the moment? He is the only one that matters.

"I said I would need help holding you up, Bello."