NL4 6max KK on A high flop

Preflop: Standard I think
Flop: I can't afford to give a free card here with both flush and straight possibilities so bet/fold. Again, is this pretty standard play here?

Thanks

OnGame - $0.04 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 4

Hero (CO): 107 BB
BTN: 25.5 BB (VPIP: 11.76, PFR: 5.88, 3Bet Preflop: 0.00, Hands: 17)
SB: 45 BB (VPIP: 50.00, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 4)
BB: 104.75 BB (VPIP: 25.00, PFR: 16.67, 3Bet Preflop: 0.00, Hands: 12)
UTG: 108 BB (VPIP: 11.76, PFR: 5.88, 3Bet Preflop: 0.00, Hands: 17)
MP: 49.5 BB (VPIP: 47.06, PFR: 23.53, 3Bet Preflop: 0.00, Hands: 17)

SB posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has K♥ K♦

fold, MP raises to 2.5 BB, Hero raises to 7.5 BB, fold, fold, fold, MP calls 5 BB

Flop: (16.5 BB, 2 players) 6♣ T♣ A♥
MP checks, Hero bets 11.5 BB, MP raises to 42 BB and is all-in, fold

MP wins 37 BB