JJ facing push on river

[NL__Fool]

Villain is 20/11 over 154 hands, no other reads.

I got called a super donk for making this call. I thought this was a total bluff because I didn't think the A [img]/images/graemlins/heart.gif[/img] would bet that much on the river and I also didn't think he had it because of the way the hand played out on the flop and turn. K or Q [img]/images/graemlins/heart.gif[/img] was unlikely because the only hand that would call that river bet would be the A [img]/images/graemlins/heart.gif[/img]

PokerStars No-Limit Hold'em, $0.50 BB (4 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

UTG ($54.85)
Button ($20.45)
SB ($30.55)
Hero ($58.35)

Preflop: Hero is BB with J[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">UTG raises to $2</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $6</font>, UTG calls $4.

Flop: ($12.25) 2[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $7.5</font>, UTG calls $7.50.

Turn: ($27.25) 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets $10</font>, Hero calls $10.

River: ($47.25) 7[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets $31.35 (All-In)</font>, Hero calls $31.35.

Final Pot: $109.95