[Cry Me A River]

Bet the flop. This is textbook semibluff - it's exactly the kind of hand that can hit a BB right between the eyes and looks really scary when you bet it. If he does call you, then check/fold the turn unless you make your hand.

If you can't stomach betting the flop, then fold. Do not be a calling station!!

Having made your hand on the turn, checkraise it (or just bet it straight out)! Villain has shown aggression, there's no need to slowplay and if he calls/comes back over the top of you, you should probably start to think about a flooped house or quads though realistically I'm never getting away with this hand and I'd be perfectly happy seeing all our chips go in on the turn.

Think about *why* you slowplay. You slowplay for basically two reasons - So your opponent thinks you don't have the monster hand that the board is showing and/or so your opponent can catch a second best hand which he will bet/call with.

Since villain bets the turn, he obviously already has a hand he likes so you don't have to wait for him to get one and he either doesn't believe you have the straight or his hand actually beats the straight. There's really nothing to be gained here by slowplaying except risking a suckout - What if he actually has T9 and he's been betting his OESD (like you should have) and a 6 comes on the river? Or what if he's been betting with a 7 and the board pairs?