overpair facing aggro on flop

[Noobler]

Villain just sat down and has played one orbit so no reads. Is preflop ok? Am I ahead enough to call the flop push?

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) Hand History Converter Tool (http://poker-tools.flopturnriver.com/Hand-Converter.php) from FlopTurnRiver.com (http://www.flopturnriver.com) (Format: 2+2 Forums)

UTG ($11.65)
MP ($15.70)
Hero ($18.80)
Button ($24.65)
SB ($15.20)
BB ($37.70)

Preflop: Hero is CO with Q/images/graemlins/spade.gif, Q/images/graemlins/heart.gif.
<font color="#666666">1 fold</font>, <font color="#CC3333">MP raises to $0.7</font>, <font color="#CC3333">Hero raises to $2</font>, <font color="#666666">3 folds</font>, <font color="#CC3333">MP raises to $4.75</font>, Hero calls $2.75.

Flop: ($9.85) J/images/graemlins/spade.gif, 5/images/graemlins/spade.gif, 6/images/graemlins/heart.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">MP bets $10.95 (All-In)</font>, Hero ???

[Coaster]

PF is fine. I'm calling his all in bet 100% of the time on that board.

[whyzze]

5bet all in.

[Noobler]

What is in his range that I would beat? The only thing I could see is AKs pushing his flush draw. Everything else I have to be behind right. What is a 4bet range of an unknown here? JJ+ AK+ or maybe just KK+? I am getting 2:1 on the call, but does he show up with a flush draw enough to justify the call? I can't imagine someone that just sat down is playing any low pairs or AJ this way.

Is pushing preflop +EV here? Seems to me at best I am a coinflip and more often then not I am probably behind. He 4bet so I imagine he is not going anywhere.

[Sense1ess]

I fold on the flop.

[Harry Fong]

To difficult with out a read. I would lay this one down. If when you do get a read and determine he is a donk than there will be other opportunities with better EV. If he happens to be a decent opponent than you can safely say he will be sitting on a better hand than yours more time than not.

[Lego05]

Pre-flop 3bet needs to be bigger like 2.5. And I may get it all-in vs. this stack although if he had a full stack I prolly fold to the 4bet. His stack is pretty borderline on what I do.

[Spanky1974]

I usually push PF here against $10 shorties. I don't mind flipping for stacks with them. Villain certainly isn't folding in a pot that is as big as his remaining stack. I think if you called the 4bet PF, then this is a pretty easy call.
What was your plan when you called the 4bet PF? The $15 stack size makes this hand pretty weird.

[orange]

Given stacks, call. I don't really like calling PF and folding this flop.