don't have the HH so I'm going to do it to the best of my memory.

1/2 6max, little over $200 eff stacks. Villain and I are complete unknowns to each other, but he seems to be ok in the few hands I've seen him fold, and neither of us seem to be getting out of line. I'm 12-tabling 6max without a HUD so my reads suck, but this guy is definately new. Never seen him and I've been sitting only for a short while.

I open to $8 on the button with black queens, villain pops me back to $26 from the SB. BB and limper both fold and we see a flop.

995, 2 spades. He leads for $40, I call. Offsuit turn rag checks through. River blanks and he leads for $100. I resist the urge of insta-calling like I normally do, think for a bit, and muck. How much I under-repped my hand to that point, and the fact that I opened on the button obviously strongly point toward a call, but this line is so rarely a bluff and I'm not so sure he's taking it on all 3 streets with worse hands with much frequency at all.

Thoughts?