Blind Defense in the SB

[deception5]

Absolute Poker 1/2 Hold'em (5 handed) http://216.119.70.224/converter/hhconverter.pl

Preflop: Hero is SB with K[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">Button raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#666666">1 fold</font>, Button calls.

Flop: (7 SB) J[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, Button calls.

Turn: (4.50 BB) J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">Button raises</font>, Hero calls.

Couple of questions.

Is KT too weak to 3-bet from the SB against a tag?
Should I just check/call the turn here?

Thanks!
D5