too tentative?

Poker Stars $0.05/$0.10 No Limit Hold'em - 9 players - View hand 285315
The Official DeucesCracked.com Hand History Converter

Hero (MP2): $8.85
CO: $25.45
BTN: $2.00
SB: $10.00
BB: $2.00
UTG: $2.00
UTG+1: $6.00
UTG+2: $12.65
MP1: $3.20

Pre Flop: ($0.15) Hero is MP2 with A A
UTG calls $0.10, 1 fold, UTG+2 raises to $0.30, 1 fold, Hero raises to $1.65, 5 folds, UTG+2 calls $1.35

Flop: ($3.55) K 4 5 (2 players)
UTG+2 checks, Hero checks

Turn: ($3.55) J (2 players)
UTG+2 bets $1, Hero calls $1

River: ($5.55) Q (2 players)
UTG+2 checks, Hero checks

Final Pot: $5.55
Hero mucks A A
UTG+2 shows Q K (two pair, Kings and Queens)
UTG+2 wins $5.30
(Rake: $0.25)

Yes, you should definitely be raising the turn here.

Checking the flop is okay here, if you're trying to trap, but flat calling the turn here is bad. You have no idea what kind of hand villian has, and he could be on a stone cold bluff at that point. And not raising the turn completely cuts the legs out from the strategy of checking the flop to set a trap.

At these levels, who knows, maybe villian calls any raise on the turn with TP2K, but I'm happy having him call a pot-sized raise here on a five outer eight days a week.