Give me permission to call

[Man of Means]

How not to play KK:

1/2 live
stacks $260
I get red KK in middle position. 1 limper and a tight player makes it $15 to go 2 places before me. I decide to smooth call, and either the limper or a blind calls, I don't remember.

Flop J[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/heart.gif[/img] (pot $45)
check, PFR bets $20, I feel like slowplaying a little more like an idiot so I call and the other player folds

Turn Q[img]/images/graemlins/club.gif[/img] (pot $85)
PFR bets $30 and I'm starting to worry he might have AA-JJ so I decide to just call this.

River A[img]/images/graemlins/club.gif[/img] (pot $145)
PFR bets $50 and I can't think of a hand I beat. TT maybe? I friggin fold? ugh. I go on life tilt after the hand.