KQo. PARTY 1/2. RIVER.

[flawless_victory]

i open black KQ in LP.
guy who who ive never played w/ before calls in BB...
he bought in 5K and folded every hand for his first orbit (i think).
anyways, HU.

flop A [img]/images/graemlins/club.gif[/img]K [img]/images/graemlins/spade.gif[/img]X [img]/images/graemlins/club.gif[/img]
check.bet.call

turn comes A [img]/images/graemlins/diamond.gif[/img]
check.ibet, he thinks about 10 secs and calls.

river 3c
he checks and now its my turn....


what is my best play?
if i bet and he raises, should i fold/call/reraise?