PokerStars Zoom Hand #114997447513: Hold'em No Limit ($2.50/$5.00) - 2014/04/19 10:32:37 WET [2014/04/19 5:32:37 ET]
Table 'Lambda Velorum' 6-max

Seat #1 is the button

Seat 1: Villain 1 ($957.61 in chips)

Seat 2: Villain 2 ($1557.20 in chips)

Seat 3: Hero ($1234.87 in chips)

Seat 4: Villain 3 ($587.31 in chips)

Seat 5: Villain 4 ($443.76 in chips)

Seat 6: Villain 5 ($2762.92 in chips)

Villain 2: posts small blind $2.50 Hero: posts big blind $5

*** HOLE CARDS ***
Dealt to Hero [Kd Ks]

Villain 3: folds

Villain 4: folds

Villain 5: folds

Villain 1: folds

Villain 2: raises $10.07 to $15.07

Hero: raises $29.93 to $45

Villain 2: calls $29.93

*** FLOP *** [3h Qc Th]

Villain 2: checks

Hero: bets $60

Villain 2: calls $60

*** TURN *** [3h Qc Th] [8h]

Villain 2: checks

Hero: bets $140

Villain 2: calls $140

*** RIVER *** [3h Qc Th 8h] [Kc]

Villain 2: checks 

Pot 490, 1k in stacks

Villain is an aggro reg, not too much history between us recently. On the river the K slams all my bluffs leaving me with not that much air, so I would have to be barreling like Ahx, which i usually flat pre. Or a random gutter like J7 but again not many of those.

If I bet I also have to worry about being shoved on, he can have flushes, he can turn a hand like AhQ or AhT into a bluff, or he can have AJ for value and I expect all to play this way to the river near 100% of the time. So, do we check back, bet fold or bet call?