Interesting betting ......(villain betting minimum every street)

[boondockst]

How do I protect myself here in case he has something?

Some of the hands have been crazy because of a few big stacks at the table. I've hardly been at the table 10 hands.

Villain in this hand just got done complaining about how aggressive the table is.

How do I interpret his bet? (I should have raised the flop a little higher as well, please don't reply in that manner, there's really no draws out anyway)

Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) converter

saw flop|<font color="#C00000">saw showdown</font>

UTG ($40.29)
MP ($42.96)
CO ($6.15)
<font color="#C00000">Hero ($29.25)</font>
SB ($23.25)
<font color="#C00000">BB ($65.66)</font>

Preflop: Hero is Button with A[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/club.gif[/img]. SB posts a blind of $0.10.
<font color="#666666">2 folds</font>, CO calls $0.25, <font color="#CC3333">Hero raises to $1</font>, <font color="#666666">1 fold</font>, BB calls $0.75, CO calls $0.75.

Flop: ($3.10) 9[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">BB bets $0.25</font>, CO calls $0.25, <font color="#CC3333">Hero raises to $2</font>, BB calls $1.75, CO calls $1.75.

Turn: ($9.10) 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">BB bets $0.25</font>, CO calls $0.25, <font color="#CC3333">Hero ??????</font>