KT in MP...flop play

[bozlax]

So, I've been playing more 6-max, trying to get a better handle on it. Table as a whole is extremely loose, pretty passive preflop. Villan just got here recently (9 hands or so), but seems more aggro than the rest of the table.

PokerStars 1/2 Hold'em (6 handed) converter

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

Flop: (7.50 SB) K[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">Button raises</font>, UTG folds, Hero ?

Question 1, I guess, is should I have donkbet? Having donkbet, should I 3-bet?