:grunch:

The only hand I'm really worried about here is AK of spades. But, I think a smaller overpair or a single A/K of spades is more likely than the AK of spades. So, I raise the turn and call down a non-spade river if he 3-bets.

EDIT: just noticed it's not HU. If BB wakes up and check/3-bets the turn, I suddenly get a lot more nervous, as he could certainly have been on a flush draw this entire time.