In situations where you flop a big hand (ie boat/flush/straight) How should it be played, generally I will slowplay against few opponents, in this situation I hit a big hand but I didn't want to scare anyone away how did I play it?

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

Preflop: Hero is MP3 with A[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/spade.gif[/img].
<font color="#666666">5 folds</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, Button calls, SB calls, <font color="#666666">1 fold</font>.

Flop: (7 SB) J[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, Hero checks, <font color="#CC3333">Button bets</font>, SB calls, Hero calls.

I din't bet or c/r here as I thought I would scare everyone away, also I wanted to c/r the turn (I would of bet/c-r if there were more opponents)

Turn: (5 BB) 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, Hero checks, <font color="#CC3333">Button bets</font>, SB calls, <font color="#CC3333">Hero raises</font>, Button calls, SB calls.

River: (11 BB) 5[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">Button raises</font>, SB folds, Hero ?

I'm worried I've been slowplayed by a flush, do I call or raise? (then again wouldn't someone with a flush re-raise the turn?)