K3s in BB on suited flop of King high - Bet or Check?

[Blindfolk]

Should I bet this flop?

Party Poker 0.50/1 Hold'em (10 handed) converter

Preflop: Hero is BB with 3[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/club.gif[/img].
UTG calls, <font color="666666">5 folds</font>, CO calls, <font color="666666">1 fold</font>, SB completes, Hero checks,

Flop: (4 SB) K[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/heart.gif[/img] <font color="blue">(4 players)</font>
SB checks, Hero ???

[csuf_gambler]

of course bet it