Hero on BTN with ~$300 behind and QQ. Villian MP with ~$175 or so.

A couple limpers and folds to Villian who opens for $13. Two calls to me on BTN I 3-bet to $35 to isolate and maybe just collect on the callers.

Folds to Villian who tanks and the calls. Fold fold so we see the flop heads up.

Flop comes K64 rainbow. Villian checks, I definitely have a K in my range and I'm in position, so I bet $45. Villian shoves.

What you got for me?

Side note: this was maybe my fifth hand after sitting down, and so I didn't have a feel yet for players and tendencies etc.