[Jeffage]

I have AQs in the BB. Full game. Folded to unknown in the SB who raises, I reraise, he calls. Flop is 993r (suits don't matter). He checks, I bet, he calls. Turn is a 4. He check-calls again. The river is a king. He checks...is betting worth it here in the rare case he might fold a pair? Or will that never happen?

Thanks,
Jeff