15-30 Hand--Prudent or Pus . . . Wimpy

[MichaelOar]

I have KK in the SB. One limper. MP (17%/5% over 150 hands) raises. Somebody cold calls, I 3-bet, BB cold calls, limper calls MP raiser calls, and cold-caller calls. Flop is QJ4 rainbow. I bet, BB folds, limper calls, MP raises, cold caller folds, I . . . ???

EDIT--middle guy was 65/4 over 75 hands
Thank you,

Michael