KJ top pair vs river bet

[z28dreams]

Full Tilt Poker, $0.10/$0.25 NL Hold'em Cash Game, 5 Players
LegoPoker Hand History Converter

SB: $24.75
BB: $16.70
UTG: $24.75
Hero (CO): $89.55
BTN: $28

Pre-Flop: K[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/club.gif[/img] dealt to Hero (CO)
UTG calls $0.25, <font color="red">Hero raises to $1.10</font>, BTN calls $1.10, 3 folds

Flop: ($2.80) 5[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $1.75</font>, BTN calls $1.75

Turn: ($6.30) T[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $4</font>, BTN calls $4

River: ($14.30) 4[img]/images/graemlins/spade.gif[/img] (2 Players)
Hero checks, <font color="red">BTN bets $10</font>
Hero ???

Don't have many hands with villain, but he seems loose - probably 40/15 or so.

Should I bet/fold this river instead?

As played, call or fold river?