KK in BB PLH

PLH, blinds 1-2, full table, stack sizes around 200, one Big Stack with more than 500.


I am in BB with KK, UTG folds, next is Big Stack (BS) who makes it 4 to go, next player (NP) calls 4, another caller, up to me.


I reraise to 16, BS calls, NP reraises to 50! caller calls. My turn.


Do I reraise here all-in?


I decide to wait for the flop without an Ace and just call.


Flop comes 58Q rainbow, I check, BS checks, NP bets himself all-in with about 120, caller folds.


What do I do?


results below