NL1k - Multiway with KK on Monotone flop...Help Plz

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Villain is OtisRush, a reg i believe at 32/14/2. However, I moved up recently so i dont have any solid reads other than that (i dont know if he leads very strongly but this looked quite strong to me). Is flat call on flop std? Should I have raised.....etc etc. All thoughts on flop/turn welcome

Full Tilt Poker - No Limit Hold'em Cash Game - $5/$10 Blinds - 6 Players - (LegoPoker HH Converter)

SB: $1,121.25
BB: $980.00
Hero (UTG): $1,000.00
MP: $1,423.00
CO: $583.25
BTN: $2,592.75

Preflop: Hero is dealt K[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/spade.gif[/img] (6 Players)
<font color="red">Hero raises to $35.00</font>, 2 folds, BTN calls $35.00, SB calls $30.00, BB calls $25.00

Flop: ($140) 3[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/heart.gif[/img] (4 Players)
SB checks, <font color="red">BB bets $140.00</font>, Hero calls $140.00, 2 folds

Turn: ($420) 3[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">BB bets $260.00</font>, Hero ....