Correct Flop raise?

No reads on any of the players involved in the pot,
Pre-flop call may not of been right but this is one of my "pet hands" so it was hard to lay it down from the BB.

Is it correct two 3-bet the flop here? as I've got the nut flush draw + BDSD, I have got overcards here but I'm not sure if I want to hit them, as I'm thinking MP2 is kicking back with AK.

On the turn I now assume UTG is on a set, therefore I just call, as I now believe I have 8 outs (I'm assuming the 5[img]/images/graemlins/heart.gif[/img] will give UTG+2 a boat)

If pumping the draw on the flop is the correct play here does any one lead out for an extra bet on the turn UI when holding the nut draw? or do you wait to see if you hit your hand before going nuts?

Also if the turn was a (non-heart) K or Q should I bet/raise here?

Paradise Poker 0.50/1 Hold'em (10 handed) FTR converter on zerodivide.cx

Preflop: Hero is BB with J[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">UTG+2 raises</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">MP2 3-bets</font>, <font color="#666666">3 folds</font>, SB calls, Hero calls, UTG+2 calls.

Flop: (12 SB) 5[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">UTG+2 raises</font>, MP2 calls, SB calls, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">UTG+2 caps</font>, MP2 calls, SB calls, Hero calls.

Turn: (14 BB) 3[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero? (lead or check/call)

Thanks in advance,
Gib