Raise this river? Aces up...

[TheWorstPlayer]

Villain is LAG/calling station/bad.

Party Poker No-Limit Hold'em, $ BB (6 max, 5 handed) converter

saw flop|<font color="#C00000">saw showdown</font>

MP ($11.7)
<font color="#C00000">Hero ($25.75)</font>
SB ($30.9)
<font color="#C00000">BB ($76.55)</font>
UTG ($24.75)

Preflop: Hero is Button with A[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/club.gif[/img]. SB posts a blind of $0.1.
<font color="#666666">2 folds</font>, Hero calls $0.25, <font color="#666666">1 fold</font>, BB checks.

Flop: ($0.60) J[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero checks.

Turn: ($0.60) 4[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets $1</font>, BB calls $1.

River: ($2.60) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $2.5</font>, Hero ???

How's my line so far, and what should I do now?