NL50 AA on bad board vs TAG

[checktheriver]

Villain is a TAG reg, 16/11/2 over 350 hands. I don't know how he plays in 3bet pots, but with these tight stats I didn't feel there was much value in betting here.
Obviously this felt weird, and I'm not sure what I should have done.
I think I could have pushed the river cause it's unlikely he would play a set so slow, and I'm not sure if he is going to bluff in this spot.

Thoughts ?

Poker Stars, $0.25/$0.50 NL Hold'em Cash Game, 4 Players
LegoPoker Hand History Converter

BTN: $119.55
Hero (SB): $49.50
BB: $94.50
UTG: $64.20

Pre-Flop: A[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/heart.gif[/img] dealt to Hero (SB)
<font color="red">UTG raises to $2</font>, BTN folds, <font color="red">Hero raises to $7</font>, BB folds, UTG calls $5

Flop: ($14.50) J[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/spade.gif[/img] (2 Players)
Hero checks, UTG checks

Turn: ($14.50) 5[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $9</font>, UTG calls $9

River: ($32.50) 7[img]/images/graemlins/club.gif[/img] (2 Players)
Hero checks, UTG checks

[Logun]

vs those stats I would expect to see AK here a lot as well as QQ and JJ.

I would bet the flop here and possibly c/c down depending on his turn action.

We are losing to AQ, TJ, KJ, TK, and a set, but KK shoudl repump PF, KJ seems too loose for his stats, TJ muight be possible if he were in later position and you'll never see TK from those stats in this position.

The more I think the more I think you can value bet this on the river after his actions.