Call and hope the board pairs. The chances of getting c/red on this street are pretty big, so there's no point in paying 3 bets. Although it is possible that the donker has two pair you still beat, or the Q [img]/images/graemlins/spade.gif[/img], there's a higher likelihood that he has a straight or flush.

The only value to raising is to fold smaller [img]/images/graemlins/spade.gif[/img]s, which is valuable IF the donker holds only two pair. This is a fairly slender parlay, so I call the turn and hope the board pairs. I call any river bet once, but fold if it is two bets to me.