KK on paired flop vs 3ppl. my move?

[Anycall]

i have no reads on the villain. fwiw he played about 40/15 over 10hands. his raise of my cbet with 2opp behind him shows he is strong. he could certainly have an 8, nfd, and overpairs worse than mine. looking at the numbers, i am well ahead of that range. however, since his raise was vs 3opp, should we give more weight to him having trips as opposed to other hands?

what is my action on flop? push or fold? it seems that if we call flop, we can't fold a blank turn.

Poker Stars - No Limit Hold'em Cash Game - $0.10/$0.25 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $24.00
BB: $31.60
UTG: $16.25
MP: $21.85
Hero (CO): $25.00
BTN: $21.00

Preflop: Hero is dealt K[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/heart.gif[/img] (6 Players)
2 folds, <font color="red">Hero raises to $1.00</font>, BTN calls $1.00, SB calls $0.90, BB calls $0.75

Flop: ($4) 8[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] (4 Players)
SB checks, BB checks, <font color="red">Hero bets $3.00</font>, <font color="red">BTN raises to $7.00</font>, 2 folds, Hero