The villain in this hand was relatively unknown to me, but from talking to him for a little while I could tell that he was a micro-stakes online reg and was an ok player but not terribly sophisticated. He was sitting directly to my left, and I'm pretty sure I was on the BTN in this hand meaning he was the SB. We both had ~100bb. The pot was limped multiway, and I limped along with Ac4d. SB completed, BB checked option. 

Flop: 2c3c5c

I flop the wheel with the nut flush re-draw. It's checked around to me, I bet $6 into the pot of $10. SB c/r's to $21, and it's folded back around to me. This is a pretty strong move, and despite my straight and my nut re-draw I'm still pretty handcuffed because of the monotone board. He's repping 2-pair, sets, A4, 46, and flopped flushes. I don't want to raise though because if I do and he 3bets, I'm in an awkward spot. I call. Pot ~$50.

Turn: Th

Turn is a brick, villain barrels $25. Same situation as the flop in that I could raise for value vs sets and 2-pairs, but I would also run the risk of getting in a tricky spot because I can't fold vs a re-raise given my nut draw. I call again. Pot ~$100. 

River: 3d

Vilain bets $35. This is a pretty bad river for me because most 2-pairs just filled up, and he can still safely bet his flopped flushes as well as probably 46 as well. He c/r'd a monotone board in a limped multiway pot and fired 3 streets. I was only considering between calling and folding, but even if I had wanted to rep a FH and bluff him off flushes, I'm not overly confident that this player was good enough to fold a flush anyway, especially given the SPR. Even though I have a well-disguised straight, my hand is effectively a bluff-catcher here in the face of villain's agressive line. 

Call or fold?