NL50: Bluffing the River with JJ on AA Board

[Shoot59]

Anybody like/hate this play?

Villain is 30/12/3 over small sample (35 hands is all) and I haven't seen him show anything down yet.

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

BB ($50)
UTG ($67.55)
MP ($51.95)
Hero ($49.25)
Button ($51.90)
SB ($40.85)

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

Flop: ($8.75) A[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $4</font>, Hero calls $4.

Turn: ($16.75) 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, Button checks.

River: ($16.75) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $15</font>

Looks like villain has no A, so I am trying to fold KK/QQ. Thoughts on all streets plz.