$200 NL 6max...things heat up with 2 overpair hands

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New to both tables so no reads unfortunately. I'm also new to NL(i'm a 10/20 and 15/30 limit 6max player by trade, i'm expanding my poker horizons for fun + self-improvement). Any insight would be much appreciated!

Party Poker No-Limit Hold'em, $ BB (6 max, 5 handed) FTR converter on zerodivide.cx

UTG ($197.40)
Hero ($185)
Button ($50)
SB ($289.15)
BB ($269.15)

Preflop: Hero is MP with A[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/heart.gif[/img]. SB posts a blind of $1.
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $6</font>, <font color="#666666">2 folds</font>, BB calls $4.

Flop: ($13) 9[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets $6</font>, Hero calls $6.

Turn: ($25) J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets $15</font>, <font color="#CC3333">BB raises to $69</font>


Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) FTR converter on zerodivide.cx

MP ($218.90)
CO ($46.80)
Hero ($151)
SB ($58.85)
BB ($232.75)
UTG ($322.95)

Preflop: Hero is Button with J[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/spade.gif[/img]. SB posts a blind of $1.
<font color="#666666">1 fold</font>, MP calls $2, CO calls $2, <font color="#CC3333">Hero raises to $12</font>, <font color="#666666">2 folds</font>, MP calls $10, CO folds.

Flop: ($29) 7[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">MP bets $5</font>, <font color="#CC3333">Hero raises to $25</font>, MP calls $20.

Turn: ($79) T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
MP checks, <font color="#CC3333">Hero bets $35</font>, <font color="#CC3333">MP raises to $125</font>

Surf