tricky spot with KK

[themandude]

Starting game 2401381038.

scacos is at seat 0 with $28.30.
Gam3R is at seat 1 with $54.85.
Pivert29 is at seat 2 with $8.95.
themandude is at seat 3 with $25.45.
Purm is at seat 4 with $24.60.
nanmitan13 is at seat 5 with $14.55.

The dealer is seat 2.

themandude posts a blind of $.15.
Purm posts a blind of $.25.

(themandude is dealt Kd Kc.)

Pre-flop:
nanmitan13 folds.
scacos folds.
Gam3R folds.
Pivert29 folds.
themandude raises $.50.
Purm calls for $.50.

The flop comes
6h 9s Jc.

themandude bets $1.50.
Purm raises $1.50.
themandude calls for $1.50.

The turn comes 8h.

themandude checks.
Purm bets $5.


I think he had a straight or maybe a set here, I didn't want to stack off out of position like this so I dumped it on the turn. comments appreciated.