Weird Hand

[GTSamIAm]

People are playing weird here, and I can't read them. Turn raise to try and knock possible AK out or get raised and knock out SB? What could SB have? Flop raise is bad as it fails to protect my hand?

Party Poker 0.5/1 Hold'em (10 handed) converter

Preflop: Hero is BB with K[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/heart.gif[/img].
UTG calls, <font color="#666666">1 fold</font>, <font color="#CC3333">UTG+2 raises</font>, <font color="#666666">2 folds</font>, MP3 calls, <font color="#666666">2 folds</font>, SB calls, <font color="#CC3333">Hero 3-bets</font>, UTG calls, <font color="#CC3333">UTG+2 caps</font>, MP3 calls, SB calls, Hero calls, UTG calls.

Flop: (20 SB) 3[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, UTG folds, <font color="#CC3333">UTG+2 raises</font>, MP3 folds, SB calls, Hero calls.

Turn: (13 BB) 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">SB bets</font>, <font color="#CC3333">Hero raises</font>, UTG+2 calls, SB folds.

River: (18 BB) J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, UTG+2 calls.

Final Pot: 20 BB