Line taken correct, with pocket KK?

[maverickai]

UTG: 23.81/14.29/3.0,2.5,2.0, after 42 hands
CO: No reads


Ultimate Bet 0.02/0.04 Hold'em (8 handed) Ultimate Bet Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is BB with K[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/heart.gif[/img]. CO posts a blind of $0.02.
<font color="#CC3333">UTG raises</font>, <font color="#666666">3 folds</font>, <font color="#CC3333">CO (poster) 3-bets</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">HERO caps</font>, UTG calls, CO calls.

Flop: (12.50 SB) 2[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">HERO bets</font>, <font color="#CC3333">UTG raises</font>, CO calls, <font color="#CC3333">HERO 3-bets</font>, <font color="#CC3333">UTG caps</font>, CO calls, HERO calls.

Turn: (12.25 BB) 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
HERO checks, <font color="#CC3333">UTG bets</font>, CO calls, HERO calls.

River: (15.25 BB) A[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
HERO checks, <font color="#CC3333">UTG bets</font>, CO calls, HERO calls.

Final Pot: 18.25 BB

I decided to slow down on the turn, cos I'll be totally owned by a set of TT, or AA. Issit maximising EV by calling down on turn? Of course, the sucky card of Ace comes on the river, and have to call down.