Rusty player needs hand analysis

[Lmn55d]

I haven't played in like 1.5 weeks b/c I've been waiting for my money to be transferred to PokerNow, so hands that should be routine are causing me to draw a blank. In this hand, is the best river play bet/call, bet/fold to raise, or check/call? Guy is slightly above average postflop aggression (around 2). Thanks.

Party Poker 3/6 Hold'em (10 handed)

Preflop: Hero is SB with A/images/graemlins/heart.gif, A/images/graemlins/diamond.gif.
<font color="666666">2 folds</font>, <font color="CC3333">UTG+2 raises</font>, <font color="666666">5 folds</font>, <font color="CC3333">Hero 3-bets</font>, <font color="666666">1 fold</font>, UTG+2 calls.

Flop: (7 SB) 7/images/graemlins/diamond.gif, K/images/graemlins/spade.gif, Q/images/graemlins/heart.gif <font color="blue">(2 players)</font>
<font color="CC3333">Hero bets</font>, <font color="CC3333">UTG+2 raises</font>, <font color="CC3333">Hero 3-bets</font>, UTG+2 calls.

Turn: (6.50 BB) 2/images/graemlins/spade.gif <font color="blue">(2 players)</font>
<font color="CC3333">Hero bets</font>, UTG+2 calls.

River: (8.50 BB) J/images/graemlins/diamond.gif <font color="blue">(2 players)</font>
<font color="CC3333">Hero bets</font>, <font color="CC3333">UTG+2 raises</font>, Hero calls.

Final Pot: 12.50 BB
<font color="green">Main Pot: 12.50 BB, between Hero and UTG+2.</font>

[CinnamonWind]

No compelling reason not to think you're not ahead until the river raise. Call and hope he had AK.

[Grease]

I play it the same. You have to bet the river. You're calling the raise too.