2/4 Bet or Check with a rivered set oop

[gir]

Villain is 19/15/4.2 ~200 hands.

I look like a draw, so I'm pretty sure he's double barrelling air. Do I bet the river or check to him so he can bluff again?

Party Poker, $2/$4 NL Hold'em Cash Game, 5 Players
LegoPoker Hand History Converter

BTN: $867.65
Hero (SB): $390
BB: $310.10
UTG: $781.50
CO: $406

Pre-Flop: 8[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/heart.gif[/img] dealt to Hero (SB)
2 folds, <font color="red">BTN raises to $13</font>, Hero calls $11, BB folds

Flop: ($30) 5[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/heart.gif[/img] (2 Players)
Hero checks, <font color="red">BTN bets $20</font>, Hero calls $20

Turn: ($70) K[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero checks, <font color="red">BTN bets $48</font>, Hero calls $48

River: ($166) 8[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero