QQ on turn?

[SenecaJim]

5-10 live. I raise QQ UTG. MP2 cold calls along with one other and BB stays. Flop is 3 raibow rags including a 6 .. looking good. I bet, only MP2 calls.

The turn is a 6. MP has been at table about an hour. I have seen him play about any 2 cards, but not cold against a raise. He seems to play pretty straightforward.

So, he donks into me after the second 6 on the turn. With my QQ the proper play would be......? pot is 6 BB's.