How long do you let them catch up

[Jeffro]

3-6 Paradise
I open raise 2 off the button with QsKh, SB and BB call.
*** FLOP *** : [ Kd 4s Qh ]
SB bets, BB folds, I call.
*** TURN *** : [ Kd 4s Qh ] [ Ks ]
SB bets, I call.
*** RIVER *** : [ Kd 4s Qh Ks ] [ 8h ]
SB bets, I raise, SB folds.

Is there a place to raise here?, think I would have made the same or less.

[NutNoPair]

Against most opponents, I think I would raise the turn. Then again, I wouldn't expect to get the river bet either. I'm glad you got the extra bet, but there are many draws that can call on the turn that can't on the river.

[CrackerZack]

You could raise the turn but if he folds there you don't pick up the extra bet on the river. I would raise the turn if the K didn't pair, since he'll usually give up on the river and just check, but then he'd most likely to call so you'd make the same. I like the play.